{"title":"Oils, Fluids \u0026 Lubricants","description":"\u003cp\u003eEngine oils, gear oils, hypoid, limited-slip, and lithium grease formulated for classic air-cooled engines and drivetrains.\u003c\/p\u003e","products":[{"product_id":"penngrade-1-assembly-lube-high-zddp-engine-build-lubricant-27-7105-5","title":"PennGrade 1 Assembly Lube | Engine Build \u0026 Rebuild | High-ZDDP High-Pressure Lube (27-7105-5)","description":"\u003ch2\u003e\u003cb\u003ePennGrade 1 Engine Assembly Lube — High-ZDDP, High-Pressure Build Lubricant\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003ePennGrade 1 Engine Assembly Lube — a \u003cb\u003eheavy, sticky, high-pressure lubricant\u003c\/b\u003e designed to coat critical engine internals during assembly and protect them through the first cold dry start of a freshly rebuilt engine. Apply to cam lobes, lifter faces, bearing journals, distributor gear, and any sliding\/rotating surface that won't see pressurized oil instantly on first crank.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eUniversal:\u003c\/b\u003e Apply to any engine during assembly or rebuild — air-cooled VW and classic engine builds included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eWhy Choose PennGrade 1?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003ePennGrade 1 is the modern brand name for the legendary \"Brad Penn\" green oil — refined in Pennsylvania from paraffinic crude, with a high-zinc additive package (ZDDP) that has long made it the favorite of vintage, air-cooled, and flat-tappet engine builders. \u003cb\u003eMade in the USA.\u003c\/b\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSticky, high-pressure film:\u003c\/b\u003e Coats parts and stays put — won't drain off before startup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFirst-start protection:\u003c\/b\u003e Guards cam lobes, lifter faces, bearing journals, the distributor drive gear, and timing components through the first dry crank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOil-compatible:\u003c\/b\u003e Compatible with all engine oils; rinses out into the oil at start-up.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEMPI Part #:\u003c\/b\u003e 27-7105-5\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUPC:\u003c\/b\u003e 707924007220\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCountry of Origin:\u003c\/b\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWhere do I apply assembly lube?\u003c\/b\u003e During engine assembly, apply to all bearings, cam lobes, lifter faces, the distributor drive gear, timing components, and any sliding or rotating surface that won't see pressurized oil instantly on first crank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWill it wash out when I start the engine?\u003c\/b\u003e Yes — it's compatible with all engine oils and rinses out into the oil at start-up.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eStock up for your build: \u003ca href=\"\/collections\/oils\"\u003eOils, Fluids \u0026amp; Lubricants\u003c\/a\u003e, the full \u003ca href=\"\/collections\/penngrade\"\u003ePennGrade Oils \u0026amp; Fluids\u003c\/a\u003e line, and \u003ca href=\"\/collections\/engine\"\u003eEngine Parts \u0026amp; Performance\u003c\/a\u003e.\u003c\/p\u003e","brand":"PennGrade 1","offers":[{"title":"Default Title","offer_id":45031564312691,"sku":"27-7105-5","price":20.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/engine-assembly-lube-bottle.png?v=1779613272"},{"product_id":"penngrade-1-engine-break-in-oil-sae-30-1-qt-high-zinc-cam-break-in-27-7120-6","title":"PennGrade 1 Break-In Oil | Air-Cooled VW \u0026 Flat-Tappet Engines | SAE 30 High-Zinc, 1 qt (27-7120-6)","description":"\u003ch2\u003e\u003cb\u003ePennGrade 1 Engine Break-In Oil, SAE 30 — High-Zinc Cam Break-In (1 qt)\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003ePennGrade 1 Engine Break-In Oil, SAE 30 — a dedicated break-in formula with \u003cb\u003eelevated zinc and phosphorus levels\u003c\/b\u003e engineered for the first 500-1000 miles of a freshly built engine. Critical for proper ring seating and flat-tappet cam break-in on air-cooled VW engines.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAir-cooled VW (Type 1 \/ Type 2 \/ Type 3):\u003c\/b\u003e Beetle, Bus, Karmann Ghia, Thing, and Type 3 — during engine break-in\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAny flat-tappet engine:\u003c\/b\u003e Requiring elevated zinc\/phosphorus for cam break-in after a rebuild\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eWhy Choose PennGrade 1?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003ePennGrade 1 is the modern brand name for the legendary \"Brad Penn\" green oil — refined in Pennsylvania from paraffinic crude, with a high-zinc additive package (ZDDP) that has long made it the favorite of vintage, air-cooled, and flat-tappet engine builders. \u003cb\u003eMade in the USA.\u003c\/b\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eElevated zinc \u0026amp; phosphorus:\u003c\/b\u003e Engineered for the first 500-1000 miles of a freshly built engine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFlat-tappet cam protection:\u003c\/b\u003e Required for proper break-in — running modern low-zinc oil through break-in will damage a freshly ground cam.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBalanced anti-wear:\u003c\/b\u003e Provides the right protection while still allowing the rings to seat properly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSAE 30 straight weight:\u003c\/b\u003e Formulated specifically for the break-in period.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEMPI Part #:\u003c\/b\u003e 27-7120-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGrade:\u003c\/b\u003e SAE 30 (straight weight, for break-in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVolume:\u003c\/b\u003e 1 quart bottle, sold individually (case of 12)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUPC:\u003c\/b\u003e 707924570489\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCountry of Origin:\u003c\/b\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHow long do I run break-in oil?\u003c\/b\u003e Run it for the first 500-1000 miles after a rebuild, then drain and switch to regular PennGrade 1 multi-grade for normal service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhy not just use regular oil for break-in?\u003c\/b\u003e Running modern low-zinc oil through break-in will damage a freshly ground cam. The elevated zinc\/phosphorus protects the flat-tappet cam while still allowing the rings to seat properly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eStock up for your build: \u003ca href=\"\/collections\/oils\"\u003eOils, Fluids \u0026amp; Lubricants\u003c\/a\u003e, the full \u003ca href=\"\/collections\/penngrade\"\u003ePennGrade Oils \u0026amp; Fluids\u003c\/a\u003e line, and \u003ca href=\"\/collections\/all-vw-aircooled\"\u003eAll VW Air-Cooled Parts\u003c\/a\u003e.\u003c\/p\u003e","brand":"PennGrade 1","offers":[{"title":"Default Title","offer_id":45031564345459,"sku":"27-7120-6","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/30w-Break-in-bottle.png?v=1779613297"},{"product_id":"penngrade-1-high-performance-engine-oil-sae-10w-30-1-qt-high-zinc-zddp-27-7150-6","title":"PennGrade 1 Engine Oil SAE 10W-30 | Air-Cooled VW \u0026 Porsche | High-Zinc\/ZDDP, 1 qt (27-7150-6)","description":"\u003ch2\u003e\u003cb\u003ePennGrade 1 High-Performance Engine Oil, SAE 10W-30 — High-Zinc\/ZDDP (1 qt)\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003ePennGrade 1 High-Performance Engine Oil, SAE 10W-30 — a \u003cb\u003esynthetic-blend, high-zinc engine oil\u003c\/b\u003e designed for air-cooled, classic, and flat-tappet engines. Outstanding film strength under thermal stress, strong anti-wear protection, and shock-load capability that modern low-zinc oils simply cannot match.\u003c\/p\u003e\n\u003cp\u003e10W-30 is the \u003cb\u003elighter end\u003c\/b\u003e of PennGrade's multi-grade lineup — appropriate for milder climates and engines with tighter bearing clearances. Most air-cooled VW owners in temperate-to-warm climates run 20W-50 for the extra film protection at operating temperature.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAir-cooled VW (Type 1 \/ 2 \/ 3 \/ 4):\u003c\/b\u003e Beetle, Bus, Karmann Ghia, Thing, and Type 3 — stock and built\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePorsche:\u003c\/b\u003e 356, 911, 912, 914 (consult your manual for grade selection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAny flat-tappet engine:\u003c\/b\u003e Requiring elevated zinc\/phosphorus anti-wear additives\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVintage \u0026amp; classic engines:\u003c\/b\u003e Built to pre-emissions API specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eWhy Choose PennGrade 1?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003ePennGrade 1 is the modern brand name for the legendary \"Brad Penn\" green oil — refined in Pennsylvania from paraffinic crude, with a high-zinc additive package (ZDDP) that has long made it the favorite of vintage, air-cooled, and flat-tappet engine builders. \u003cb\u003eMade in the USA.\u003c\/b\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-zinc\/ZDDP protection:\u003c\/b\u003e Strong anti-wear and shock-load capability that modern low-zinc oils cannot match.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSynthetic-blend film strength:\u003c\/b\u003e Outstanding film strength under thermal stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLighter multi-grade:\u003c\/b\u003e Suited to milder climates and engines with tighter bearing clearances.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEMPI Part #:\u003c\/b\u003e 27-7150-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGrade:\u003c\/b\u003e SAE 10W-30\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVolume:\u003c\/b\u003e 1 quart bottle, sold individually (case of 12)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUPC:\u003c\/b\u003e 707924570427\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCountry of Origin:\u003c\/b\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eIs 10W-30 the right grade for my air-cooled VW?\u003c\/b\u003e 10W-30 is the lighter end of the lineup, appropriate for milder climates and engines with tighter bearing clearances. Most air-cooled VW owners in temperate-to-warm climates run 20W-50 for the extra film protection at operating temperature.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhy does ZDDP matter for air-cooled VWs?\u003c\/b\u003e Modern API SP\/SN oils have stripped most of the zinc dialkyldithiophosphate (ZDDP) anti-wear additive to protect catalytic converters. Air-cooled VW engines have no catalytic converters but do have flat-tappet camshafts that depend on a high zinc\/phosphorus barrier layer; running modern low-zinc oil in a vintage flat-tappet engine will wipe a cam lobe in surprisingly few miles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eStock up for your build: the full \u003ca href=\"\/collections\/penngrade\"\u003ePennGrade Oils \u0026amp; Fluids\u003c\/a\u003e line, \u003ca href=\"\/collections\/all-vw-aircooled\"\u003eAll VW Air-Cooled Parts\u003c\/a\u003e, and \u003ca href=\"\/collections\/all-porsche\"\u003eAll Porsche Parts\u003c\/a\u003e.\u003c\/p\u003e","brand":"PennGrade 1","offers":[{"title":"Default Title","offer_id":45031564443763,"sku":"27-7150-6","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/10w-30-SB-Oil-bottle.png?v=1779613323"},{"product_id":"penngrade-1-high-performance-engine-oil-sae-10w-40-1-qt-high-zinc-zddp-27-7144-6","title":"PennGrade 1 Engine Oil SAE 10W-40 | Air-Cooled VW \u0026 Porsche | High-Zinc\/ZDDP, 1 qt (27-7144-6)","description":"\u003ch2\u003e\u003cb\u003ePennGrade 1 High-Performance Engine Oil, SAE 10W-40 — High-Zinc\/ZDDP (1 qt)\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003ePennGrade 1 High-Performance Engine Oil, SAE 10W-40 — a \u003cb\u003esynthetic-blend, high-zinc engine oil\u003c\/b\u003e designed for air-cooled, classic, and flat-tappet engines. Outstanding film strength under thermal stress, strong anti-wear protection, and shock-load capability that modern low-zinc oils simply cannot match.\u003c\/p\u003e\n\u003cp\u003e10W-40 is a good \u003cb\u003emiddle-ground multi-grade\u003c\/b\u003e — better cold-start flow than straight 30 weight, more film protection at operating temperature than 10W-30. A reasonable choice in moderate climates for engines with stock-spec bearing clearances.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAir-cooled VW (Type 1 \/ 2 \/ 3 \/ 4):\u003c\/b\u003e Beetle, Bus, Karmann Ghia, Thing, and Type 3 — stock and built\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePorsche:\u003c\/b\u003e 356, 911, 912, 914 (consult your manual for grade selection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAny flat-tappet engine:\u003c\/b\u003e Requiring elevated zinc\/phosphorus anti-wear additives\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVintage \u0026amp; classic engines:\u003c\/b\u003e Built to pre-emissions API specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eWhy Choose PennGrade 1?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003ePennGrade 1 is the modern brand name for the legendary \"Brad Penn\" green oil — refined in Pennsylvania from paraffinic crude, with a high-zinc additive package (ZDDP) that has long made it the favorite of vintage, air-cooled, and flat-tappet engine builders. \u003cb\u003eMade in the USA.\u003c\/b\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-zinc\/ZDDP protection:\u003c\/b\u003e Strong anti-wear and shock-load capability that modern low-zinc oils cannot match.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSynthetic-blend film strength:\u003c\/b\u003e Outstanding film strength under thermal stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMiddle-ground multi-grade:\u003c\/b\u003e Better cold-start flow than straight 30 weight, more film protection than 10W-30.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEMPI Part #:\u003c\/b\u003e 27-7144-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGrade:\u003c\/b\u003e SAE 10W-40\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVolume:\u003c\/b\u003e 1 quart bottle, sold individually (case of 12)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUPC:\u003c\/b\u003e 707924570458\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCountry of Origin:\u003c\/b\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWhen should I choose 10W-40?\u003c\/b\u003e It's a good middle-ground multi-grade — better cold-start flow than a straight 30 weight and more film protection at operating temperature than 10W-30. A reasonable choice in moderate climates for engines with stock-spec bearing clearances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhy does ZDDP matter for air-cooled VWs?\u003c\/b\u003e Modern API SP\/SN oils have stripped most of the zinc dialkyldithiophosphate (ZDDP) anti-wear additive to protect catalytic converters. Air-cooled VW engines have no catalytic converters but do have flat-tappet camshafts that depend on a high zinc\/phosphorus barrier layer; running modern low-zinc oil in a vintage flat-tappet engine will wipe a cam lobe in surprisingly few miles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eStock up for your build: the full \u003ca href=\"\/collections\/penngrade\"\u003ePennGrade Oils \u0026amp; Fluids\u003c\/a\u003e line, \u003ca href=\"\/collections\/all-vw-aircooled\"\u003eAll VW Air-Cooled Parts\u003c\/a\u003e, and \u003ca href=\"\/collections\/all-porsche\"\u003eAll Porsche Parts\u003c\/a\u003e.\u003c\/p\u003e","brand":"PennGrade 1","offers":[{"title":"Default Title","offer_id":45031564509299,"sku":"27-7144-6","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/10w-40-SB-Oil-bottle.png?v=1779613349"},{"product_id":"penngrade-1-high-performance-engine-oil-sae-20w-50-1-qt-air-cooled-vw-favorite-27-7119-6","title":"PennGrade 1 Engine Oil SAE 20W-50 | Air-Cooled VW Favorite \u0026 Porsche | High-Zinc\/ZDDP, 1 qt (27-7119-6)","description":"\u003ch2\u003e\u003cb\u003ePennGrade 1 High-Performance Engine Oil, SAE 20W-50 — Air-Cooled VW Favorite (1 qt)\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003ePennGrade 1 High-Performance Engine Oil, SAE 20W-50 — a \u003cb\u003esynthetic-blend, high-zinc engine oil\u003c\/b\u003e designed for air-cooled, classic, and flat-tappet engines. Outstanding film strength under thermal stress, strong anti-wear protection, and shock-load capability that modern low-zinc oils simply cannot match.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe most popular grade for air-cooled VW Type 1 engines.\u003c\/b\u003e Air-cooled engines run hotter than water-cooled ones, and 20W-50 holds its viscosity at sustained high operating temperatures better than lighter weights. If you don't know which PennGrade 1 to buy for a stock-to-mild VW Beetle\/Bus\/Ghia, this is it.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAir-cooled VW (Type 1 \/ 2 \/ 3 \/ 4):\u003c\/b\u003e Beetle, Bus, Karmann Ghia, Thing, and Type 3 — stock and built\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePorsche:\u003c\/b\u003e 356, 911, 912, 914 (consult your manual for grade selection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAny flat-tappet engine:\u003c\/b\u003e Requiring elevated zinc\/phosphorus anti-wear additives\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVintage \u0026amp; classic engines:\u003c\/b\u003e Built to pre-emissions API specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eWhy Choose PennGrade 1?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003ePennGrade 1 is the modern brand name for the legendary \"Brad Penn\" green oil — refined in Pennsylvania from paraffinic crude, with a high-zinc additive package (ZDDP) that has long made it the favorite of vintage, air-cooled, and flat-tappet engine builders. \u003cb\u003eMade in the USA.\u003c\/b\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAir-cooled VW favorite:\u003c\/b\u003e The most popular grade for air-cooled VW Type 1 engines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHolds viscosity when hot:\u003c\/b\u003e Maintains film strength at the sustained high operating temperatures air-cooled engines reach.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-zinc\/ZDDP protection:\u003c\/b\u003e Strong anti-wear and shock-load capability that modern low-zinc oils cannot match.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEMPI Part #:\u003c\/b\u003e 27-7119-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGrade:\u003c\/b\u003e SAE 20W-50\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVolume:\u003c\/b\u003e 1 quart bottle, sold individually (case of 12)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUPC:\u003c\/b\u003e 707924570434\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCountry of Origin:\u003c\/b\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWhich PennGrade 1 grade should I run in a stock air-cooled VW?\u003c\/b\u003e 20W-50 is the most popular grade for air-cooled VW Type 1 engines. If you don't know which to buy for a stock-to-mild VW Beetle\/Bus\/Ghia, this is it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhy 20W-50 for an air-cooled engine?\u003c\/b\u003e Air-cooled engines run hotter than water-cooled ones, and 20W-50 holds its viscosity at sustained high operating temperatures better than lighter weights.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhy does ZDDP matter for air-cooled VWs?\u003c\/b\u003e Modern API SP\/SN oils have stripped most of the zinc dialkyldithiophosphate (ZDDP) anti-wear additive to protect catalytic converters. Air-cooled VW engines have no catalytic converters but do have flat-tappet camshafts that depend on a high zinc\/phosphorus barrier layer; running modern low-zinc oil in a vintage flat-tappet engine will wipe a cam lobe in surprisingly few miles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eStock up for your build: the full \u003ca href=\"\/collections\/penngrade\"\u003ePennGrade Oils \u0026amp; Fluids\u003c\/a\u003e line, \u003ca href=\"\/collections\/all-vw-aircooled\"\u003eAll VW Air-Cooled Parts\u003c\/a\u003e, and \u003ca href=\"\/collections\/all-porsche\"\u003eAll Porsche Parts\u003c\/a\u003e.\u003c\/p\u003e","brand":"PennGrade 1","offers":[{"title":"Default Title","offer_id":45031564640371,"sku":"27-7119-6","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/20w-50-SB-Oil-bottle.png?v=1779613374"},{"product_id":"penngrade-1-high-performance-engine-oil-sae-30-1-qt-straight-weight-high-zinc-27-7139-6","title":"PennGrade 1 Engine Oil SAE 30 Straight Weight | Air-Cooled VW \u0026 Porsche | High-Zinc, 1 qt (27-7139-6)","description":"\u003ch2\u003e\u003cb\u003ePennGrade 1 High-Performance Engine Oil, SAE 30 Straight Weight — High-Zinc (1 qt)\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003ePennGrade 1 High-Performance Engine Oil, SAE 30 (straight weight) — a \u003cb\u003esynthetic-blend, high-zinc engine oil\u003c\/b\u003e designed for air-cooled, classic, and flat-tappet engines. Outstanding film strength under thermal stress, strong anti-wear protection, and shock-load capability that modern low-zinc oils simply cannot match.\u003c\/p\u003e\n\u003cp\u003eStraight-weight SAE 30 is the \u003cb\u003eoriginal VW factory recommendation\u003c\/b\u003e for moderate temperatures. Some traditionalists still prefer single-weight oils for vintage engines on the theory that they avoid the viscosity-index improvers in multi-grades that can shear down under stress. Best for warm climates and not for cold starts below ~50°F.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAir-cooled VW (Type 1 \/ 2 \/ 3 \/ 4):\u003c\/b\u003e Beetle, Bus, Karmann Ghia, Thing, and Type 3 — stock and built\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePorsche:\u003c\/b\u003e 356, 911, 912, 914 (consult your manual for grade selection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAny flat-tappet engine:\u003c\/b\u003e Requiring elevated zinc\/phosphorus anti-wear additives\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVintage \u0026amp; classic engines:\u003c\/b\u003e Built to pre-emissions API specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eWhy Choose PennGrade 1?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003ePennGrade 1 is the modern brand name for the legendary \"Brad Penn\" green oil — refined in Pennsylvania from paraffinic crude, with a high-zinc additive package (ZDDP) that has long made it the favorite of vintage, air-cooled, and flat-tappet engine builders. \u003cb\u003eMade in the USA.\u003c\/b\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eOriginal factory grade:\u003c\/b\u003e Straight-weight SAE 30, the original VW factory recommendation for moderate temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSingle-weight simplicity:\u003c\/b\u003e Avoids the viscosity-index improvers in multi-grades that can shear down under stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-zinc\/ZDDP protection:\u003c\/b\u003e Strong anti-wear and shock-load capability that modern low-zinc oils cannot match.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEMPI Part #:\u003c\/b\u003e 27-7139-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGrade:\u003c\/b\u003e SAE 30 (straight weight)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVolume:\u003c\/b\u003e 1 quart bottle, sold individually (case of 12)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUPC:\u003c\/b\u003e 707924570472\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCountry of Origin:\u003c\/b\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWhen should I run straight-weight SAE 30?\u003c\/b\u003e It's the original VW factory recommendation for moderate temperatures — best for warm climates and not for cold starts below ~50°F.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhy do some builders prefer single-weight oil?\u003c\/b\u003e Some traditionalists prefer single-weight oils for vintage engines on the theory that they avoid the viscosity-index improvers in multi-grades that can shear down under stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhy does ZDDP matter for air-cooled VWs?\u003c\/b\u003e Modern API SP\/SN oils have stripped most of the zinc dialkyldithiophosphate (ZDDP) anti-wear additive to protect catalytic converters. Air-cooled VW engines have no catalytic converters but do have flat-tappet camshafts that depend on a high zinc\/phosphorus barrier layer; running modern low-zinc oil in a vintage flat-tappet engine will wipe a cam lobe in surprisingly few miles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eStock up for your build: the full \u003ca href=\"\/collections\/penngrade\"\u003ePennGrade Oils \u0026amp; Fluids\u003c\/a\u003e line, \u003ca href=\"\/collections\/all-vw-aircooled\"\u003eAll VW Air-Cooled Parts\u003c\/a\u003e, and \u003ca href=\"\/collections\/all-porsche\"\u003eAll Porsche Parts\u003c\/a\u003e.\u003c\/p\u003e","brand":"PennGrade 1","offers":[{"title":"Default Title","offer_id":45031564902515,"sku":"27-7139-6","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/30w-HP-Oil-bottle.png?v=1779613400"},{"product_id":"penngrade-1-high-performance-engine-oil-sae-40-1-qt-straight-weight-high-zinc-27-7140-6","title":"PennGrade 1 Engine Oil | Air-Cooled VW \u0026 Porsche | SAE 40 Straight-Weight High-Zinc (27-7140-6)","description":"\u003ch2\u003e\u003cb\u003ePennGrade 1 High-Performance Engine Oil — SAE 40 Straight-Weight, High-Zinc (1 qt)\u003c\/b\u003e\u003c\/h2\u003e\u003cp\u003eA \u003cb\u003esynthetic-blend, high-zinc\u003c\/b\u003e engine oil engineered for air-cooled, classic, and flat-tappet engines. Outstanding film strength under thermal stress, strong anti-wear protection, and shock-load capability that modern low-zinc oils simply cannot match.\u003c\/p\u003e\u003cp\u003eStraight-weight \u003cb\u003eSAE 40\u003c\/b\u003e — heavier than SAE 30, lighter than SAE 50. A traditionalist choice for warmer climates and built engines with looser bearing clearances. Not recommended for cold starts below ~60°F.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAir-Cooled VW:\u003c\/b\u003e Type 1, Type 2, Type 3, Type 4 engines (stock and built)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePorsche:\u003c\/b\u003e 356, 911, 912, 914 (consult manual for grade selection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFlat-tappet engines:\u003c\/b\u003e any engine requiring elevated zinc\/phosphorus anti-wear additives, and vintage engines built to pre-emissions API specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eWhy Choose PennGrade 1?\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003ePennGrade 1 is the modern brand name for the legendary \"Brad Penn\" green oil — refined in Pennsylvania from paraffinic crude, with a high-zinc additive package (ZDDP) that has long made it the favorite of vintage, air-cooled, and flat-tappet engine builders. Made in the USA.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHigh ZDDP anti-wear:\u003c\/b\u003e maintains the elevated zinc\/phosphorus barrier flat-tappet cams and rockers depend on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStrong film strength:\u003c\/b\u003e holds up under thermal stress and shock loads better than modern low-zinc oils.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStraight-weight SAE 40:\u003c\/b\u003e suited to warmer climates and built engines with looser bearing clearances.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEMPI Part #:\u003c\/b\u003e 27-7140-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGrade:\u003c\/b\u003e SAE 40 (straight weight)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVolume:\u003c\/b\u003e 1 quart bottle, sold individually (case of 12)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUPC:\u003c\/b\u003e 707924570465\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCountry of Origin:\u003c\/b\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWhy does an air-cooled VW need high-zinc oil?\u003c\/b\u003e Air-cooled VW engines have no catalytic converters but do use flat-tappet camshafts and rocker geometry that depend on a high zinc\/phosphorus (ZDDP) barrier layer. Modern low-zinc API SP\/SN oils can wipe a cam lobe in a flat-tappet engine; PennGrade 1 maintains the high ZDDP levels these engines were designed around.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhen should I choose SAE 40 over a lighter grade?\u003c\/b\u003e SAE 40 is heavier than SAE 30 and lighter than SAE 50 — a traditionalist choice for warmer climates and built engines with looser bearing clearances. It is not recommended for cold starts below ~60°F.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIs this the same as the original Brad Penn green oil?\u003c\/b\u003e Yes. PennGrade 1 is the modern brand name for the legendary \"Brad Penn\" oil, refined in Pennsylvania from paraffinic crude with the same high-zinc additive package.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"\/collections\/oils\"\u003eOils \u0026amp; Lubricants\u003c\/a\u003e · \u003ca href=\"\/collections\/engine\"\u003eEngine\u003c\/a\u003e · \u003ca href=\"\/collections\/all-vw-aircooled\"\u003eAll VW Air-Cooled\u003c\/a\u003e\u003c\/p\u003e","brand":"PennGrade 1","offers":[{"title":"Default Title","offer_id":45031565033587,"sku":"27-7140-6","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/PennGrade_1_High_Performance_Oil_SAE_40_QUART.jpg?v=1779613423"},{"product_id":"penngrade-1-high-performance-engine-oil-sae-50-1-qt-heavy-duty-straight-weight-27-7115-6","title":"PennGrade 1 Engine Oil | Air-Cooled VW \u0026 Porsche | SAE 50 Heavy-Duty Straight-Weight (27-7115-6)","description":"\u003ch2\u003e\u003cb\u003ePennGrade 1 High-Performance Engine Oil — SAE 50 Heavy-Duty Straight-Weight, High-Zinc (1 qt)\u003c\/b\u003e\u003c\/h2\u003e\u003cp\u003eA \u003cb\u003esynthetic-blend, high-zinc\u003c\/b\u003e engine oil engineered for air-cooled, classic, and flat-tappet engines. Outstanding film strength under thermal stress, strong anti-wear protection, and shock-load capability that modern low-zinc oils simply cannot match.\u003c\/p\u003e\u003cp\u003eStraight-weight \u003cb\u003eSAE 50\u003c\/b\u003e — the heaviest weight in the PennGrade 1 lineup. Used in hot climates, sustained high-load operation, and built engines with deliberately loose bearing clearances. Not recommended for cold-start operation below ~70°F.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAir-Cooled VW:\u003c\/b\u003e Type 1, Type 2, Type 3, Type 4 engines (stock and built)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePorsche:\u003c\/b\u003e 356, 911, 912, 914 (consult manual for grade selection)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFlat-tappet engines:\u003c\/b\u003e any engine requiring elevated zinc\/phosphorus anti-wear additives, and vintage engines built to pre-emissions API specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eWhy Choose PennGrade 1?\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003ePennGrade 1 is the modern brand name for the legendary \"Brad Penn\" green oil — refined in Pennsylvania from paraffinic crude, with a high-zinc additive package (ZDDP) that has long made it the favorite of vintage, air-cooled, and flat-tappet engine builders. Made in the USA.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHigh ZDDP anti-wear:\u003c\/b\u003e maintains the elevated zinc\/phosphorus barrier flat-tappet cams and rockers depend on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHeaviest straight weight:\u003c\/b\u003e SAE 50 for hot climates, sustained high load, and built engines with loose bearing clearances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStrong film strength:\u003c\/b\u003e holds up under thermal stress and shock loads better than modern low-zinc oils.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEMPI Part #:\u003c\/b\u003e 27-7115-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGrade:\u003c\/b\u003e SAE 50 (straight weight)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVolume:\u003c\/b\u003e 1 quart bottle, sold individually (case of 12)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUPC:\u003c\/b\u003e 707924007244\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCountry of Origin:\u003c\/b\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWhy does an air-cooled VW need high-zinc oil?\u003c\/b\u003e Air-cooled VW engines have no catalytic converters but do use flat-tappet camshafts and rocker geometry that depend on a high zinc\/phosphorus (ZDDP) barrier layer. Modern low-zinc API SP\/SN oils can wipe a cam lobe in a flat-tappet engine; PennGrade 1 maintains the high ZDDP levels these engines were designed around.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhen should I use SAE 50?\u003c\/b\u003e SAE 50 is the heaviest weight in the lineup — used in hot climates, sustained high-load operation, and built engines with deliberately loose bearing clearances. It is not recommended for cold-start operation below ~70°F.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIs this the same as the original Brad Penn green oil?\u003c\/b\u003e Yes. PennGrade 1 is the modern brand name for the legendary \"Brad Penn\" oil, refined in Pennsylvania from paraffinic crude with the same high-zinc additive package.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"\/collections\/oils\"\u003eOils \u0026amp; Lubricants\u003c\/a\u003e · \u003ca href=\"\/collections\/engine\"\u003eEngine\u003c\/a\u003e · \u003ca href=\"\/collections\/all-vw-aircooled\"\u003eAll VW Air-Cooled\u003c\/a\u003e\u003c\/p\u003e","brand":"PennGrade 1","offers":[{"title":"Default Title","offer_id":45031565262963,"sku":"27-7115-6","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/50w-HP-Oil-bottle-1.png?v=1779613450"},{"product_id":"penngrade-1-multi-purpose-gear-oil-gl-4-80w-90-1-qt-vw-transaxle-27-7729-6","title":"PennGrade 1 Gear Oil | VW Air-Cooled Transaxle | GL-4 80W-90 (27-7729-6)","description":"\u003ch2\u003e\u003cb\u003ePennGrade 1 Multi-Purpose Gear Oil — GL-4, 80W-90 (1 qt)\u003c\/b\u003e\u003c\/h2\u003e\u003cp\u003eA high-quality conventional gear oil for manual transmissions and transaxles that specifically require \u003cb\u003eAPI GL-4\u003c\/b\u003e (not GL-5). The VW air-cooled transaxle is a GL-4 application — using GL-5 in it can attack the brass synchros over time.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eVW Air-Cooled Transaxle:\u003c\/b\u003e Type 1, Type 2, Type 3, Type 4 manual transmissions — the correct gear oil for your VW box\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAny manual transmission:\u003c\/b\u003e requiring API GL-4 specification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eWhy Choose PennGrade 1?\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003ePennGrade 1 is the modern brand name for the legendary \"Brad Penn\" green oil — refined in Pennsylvania from paraffinic crude, long a favorite of vintage and air-cooled engine builders. Made in the USA.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCorrect GL-4 spec:\u003c\/b\u003e safe for the brass synchronizer rings used in the VW transaxle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e80W-90 grade:\u003c\/b\u003e conventional multi-purpose gear oil for manual gearboxes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTransaxle capacity:\u003c\/b\u003e approximately 2.5 quarts for a Type 1 transaxle, ~3 quarts for Type 2\/Type 4.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEMPI Part #:\u003c\/b\u003e 27-7729-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGrade:\u003c\/b\u003e 80W-90\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAPI:\u003c\/b\u003e GL-4\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVolume:\u003c\/b\u003e 1 quart bottle, sold individually (case of 12)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUPC:\u003c\/b\u003e 707924570403\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCountry of Origin:\u003c\/b\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWhy GL-4 and not GL-5 in a VW transaxle?\u003c\/b\u003e GL-5 gear oils contain higher levels of sulfur-phosphorus extreme-pressure additives needed for hypoid differentials, but those additives corrode brass synchronizer rings in manual gearboxes over time. The VW transaxle uses brass synchros, so use GL-4 (this product), not GL-5.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHow much do I need for a VW transaxle?\u003c\/b\u003e Approximately 2.5 quarts for a Type 1 transaxle and about 3 quarts for Type 2\/Type 4.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"\/collections\/oils\"\u003eOils \u0026amp; Lubricants\u003c\/a\u003e · \u003ca href=\"\/collections\/transaxle-components\"\u003eTransaxle Components\u003c\/a\u003e · \u003ca href=\"\/collections\/drivetrain-transmission\"\u003eDrivetrain \u0026amp; Transmission\u003c\/a\u003e\u003c\/p\u003e","brand":"PennGrade 1","offers":[{"title":"Default Title","offer_id":45031565328499,"sku":"27-7729-6","price":20.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/PG1_-MP-GL-4-GO-80W90_Qt.jpg?v=1779613475"},{"product_id":"penngrade-1-limited-slip-gear-oil-gl-5-80w-90-1-qt-lsd-posi-27-7732-6","title":"PennGrade 1 Limited-Slip Gear Oil | LSD \/ Posi Differential | GL-5 80W-90 (27-7732-6)","description":"\u003ch2\u003e\u003cb\u003ePennGrade 1 Limited-Slip Gear Oil — GL-5, 80W-90 (1 qt)\u003c\/b\u003e\u003c\/h2\u003e\u003cp\u003eA conventional gear oil with a \u003cb\u003elimited-slip (LSD\/Posi)\u003c\/b\u003e additive package for differentials requiring \u003cb\u003eAPI GL-5\u003c\/b\u003e specification with limited-slip friction modifiers.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eLimited-slip differentials:\u003c\/b\u003e LSD and Posi-traction units requiring GL-5 spec\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHypoid differentials:\u003c\/b\u003e with clutch-pack or cone-type LSD units\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNot for VW air-cooled transaxles:\u003c\/b\u003e VW boxes are GL-4 — use part 27-7729-6 instead\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eWhy Choose PennGrade 1?\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003ePennGrade 1 is the modern brand name for the legendary \"Brad Penn\" green oil — refined in Pennsylvania from paraffinic crude, long a favorite of vintage and air-cooled engine builders. Made in the USA.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eLimited-slip additive package:\u003c\/b\u003e friction modifiers formulated for LSD\/Posi clutch-pack and cone-type units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGL-5 extreme-pressure protection:\u003c\/b\u003e for hypoid differentials under heavy load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e80W-90 grade:\u003c\/b\u003e conventional gear oil viscosity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEMPI Part #:\u003c\/b\u003e 27-7732-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGrade:\u003c\/b\u003e 80W-90\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAPI:\u003c\/b\u003e GL-5 with LSD additives\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVolume:\u003c\/b\u003e 1 quart bottle, sold individually (case of 12)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUPC:\u003c\/b\u003e 707924570397\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCountry of Origin:\u003c\/b\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCan I use this in my VW air-cooled transaxle?\u003c\/b\u003e No. The VW transaxle is a GL-4 application — GL-5 additives can attack the brass synchros. Use PennGrade 1 GL-4 80W-90 (part 27-7729-6) in a VW box instead.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat is the limited-slip additive for?\u003c\/b\u003e It provides friction modifiers required by limited-slip (LSD\/Posi) clutch-pack and cone-type differential units to operate correctly.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"\/collections\/oils\"\u003eOils \u0026amp; Lubricants\u003c\/a\u003e · \u003ca href=\"\/collections\/drivetrain-transmission\"\u003eDrivetrain \u0026amp; Transmission\u003c\/a\u003e · \u003ca href=\"\/collections\/axles\"\u003eAxles\u003c\/a\u003e\u003c\/p\u003e","brand":"PennGrade 1","offers":[{"title":"Default Title","offer_id":45031565426803,"sku":"27-7732-6","price":20.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/PG1_Ltd-Slp-GL-5-GO-80W90_Qt.jpg?v=1779613496"},{"product_id":"penngrade-1-hypoid-gear-oil-gl-5-75w-90-1-qt-synthetic-differential-27-7766-6","title":"PennGrade 1 Hypoid Gear Oil | Full-Synthetic Differential | GL-5 75W-90 (27-7766-6)","description":"\u003ch2\u003e\u003cb\u003ePennGrade 1 Hypoid Gear Oil — GL-5, 75W-90 Full Synthetic (1 qt)\u003c\/b\u003e\u003c\/h2\u003e\u003cp\u003eA \u003cb\u003efull-synthetic\u003c\/b\u003e gear oil for hypoid differentials. The synthetic base stock provides better cold-flow characteristics than conventional 80W-90, plus superior shear stability under high load.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHypoid differentials:\u003c\/b\u003e trucks, hot rods, and modern rear-drive vehicles requiring GL-5 spec\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCold-flow applications:\u003c\/b\u003e where 75W-90 performance is preferred over 80W-90 conventional\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNot for VW air-cooled transaxles:\u003c\/b\u003e VW boxes are GL-4 — use part 27-7729-6 instead\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eWhy Choose PennGrade 1?\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003ePennGrade 1 is the modern brand name for the legendary \"Brad Penn\" green oil — refined in Pennsylvania from paraffinic crude, long a favorite of vintage and air-cooled engine builders. Made in the USA.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFull-synthetic base stock:\u003c\/b\u003e better cold-flow than conventional 80W-90.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSuperior shear stability:\u003c\/b\u003e holds viscosity under high load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGL-5 protection:\u003c\/b\u003e extreme-pressure additives for hypoid differential gear sets.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEMPI Part #:\u003c\/b\u003e 27-7766-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGrade:\u003c\/b\u003e 75W-90\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAPI:\u003c\/b\u003e GL-5\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eType:\u003c\/b\u003e Full Synthetic\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVolume:\u003c\/b\u003e 1 quart bottle, sold individually (case of 12)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUPC:\u003c\/b\u003e 707924571158\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCountry of Origin:\u003c\/b\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCan I use this in my VW air-cooled transaxle?\u003c\/b\u003e No. The VW transaxle is a GL-4 application — GL-5 additives can attack the brass synchros. Use PennGrade 1 GL-4 80W-90 (part 27-7729-6) in a VW box instead.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhy choose 75W-90 synthetic over 80W-90 conventional?\u003c\/b\u003e The synthetic base stock offers better cold-flow characteristics and superior shear stability under high load.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"\/collections\/oils\"\u003eOils \u0026amp; Lubricants\u003c\/a\u003e · \u003ca href=\"\/collections\/drivetrain-transmission\"\u003eDrivetrain \u0026amp; Transmission\u003c\/a\u003e · \u003ca href=\"\/collections\/axles\"\u003eAxles\u003c\/a\u003e\u003c\/p\u003e","brand":"PennGrade 1","offers":[{"title":"Default Title","offer_id":45031565557875,"sku":"27-7766-6","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/PG1-FS-Hypoid-Blower-RO_75W-90-Qt.jpg?v=1779613518"},{"product_id":"penngrade-1-titan-blue-lithium-grease-14-oz-tube-27-1226-7","title":"PennGrade 1 Titan Blue Lithium Grease | Multi-Purpose NLGI #2 | 14 oz Tube (27-1226-7)","description":"\u003ch2\u003e\u003cb\u003ePennGrade 1 Titan Blue Lithium Grease — Multi-Purpose, 14 oz Tube\u003c\/b\u003e\u003c\/h2\u003e\u003cp\u003eA high-quality \u003cb\u003emulti-purpose lithium-complex grease\u003c\/b\u003e for wheel bearings, chassis lube fittings, CV joints, U-joints, and general automotive grease applications. The 14 oz cartridge fits standard grease guns.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cb\u003eUniversal:\u003c\/b\u003e multi-purpose automotive grease for air-cooled VW and general applications\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eWhy Choose PennGrade 1?\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003ePennGrade 1 is the modern brand name for the legendary \"Brad Penn\" green oil — refined in Pennsylvania from paraffinic crude, long a favorite of vintage and air-cooled engine builders. Made in the USA.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWheel bearings:\u003c\/b\u003e front and rear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eChassis grease fittings:\u003c\/b\u003e ball joints, tie rod ends, kingpins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCV joint repacking\u003c\/b\u003e and general driveline lube.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eU-joints, slip yokes, suspension pivot points\u003c\/b\u003e and other multi-purpose grease points.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eEMPI Part #:\u003c\/b\u003e 27-1226-7\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGrade:\u003c\/b\u003e NLGI #2 lithium-complex grease\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVolume:\u003c\/b\u003e 14 oz tube (standard grease gun cartridge)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUPC:\u003c\/b\u003e 707924571189\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCountry of Origin:\u003c\/b\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWhat can I use this grease for?\u003c\/b\u003e It is a multi-purpose lithium-complex grease for wheel bearings, chassis grease fittings (ball joints, tie rod ends, kingpins), CV joint repacking, U-joints, slip yokes, suspension pivot points, and general automotive grease applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWill it fit my grease gun?\u003c\/b\u003e Yes — the 14 oz cartridge is a standard grease gun size.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"\/collections\/oils\"\u003eOils \u0026amp; Lubricants\u003c\/a\u003e · \u003ca href=\"\/collections\/suspension\"\u003eSuspension\u003c\/a\u003e · \u003ca href=\"\/collections\/all-vw-aircooled\"\u003eAll VW Air-Cooled\u003c\/a\u003e\u003c\/p\u003e","brand":"PennGrade 1","offers":[{"title":"Default Title","offer_id":45031565590643,"sku":"27-1226-7","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/27-1226-7-scaled.jpg?v=1779613539"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/collections\/30w-Break-in-bottle_deece602-4f0b-4076-bb98-a580ec61b2a1.png?v=1780699662","url":"https:\/\/www.washburnsmetal.com\/collections\/oils.oembed","provider":"Washburn's Metal","version":"1.0","type":"link"}