Built for the demands of high-output, high-RPM engines, Valvoline VR1 is America's original motorsports and muscle car oil with a proven track record since 1965. This 5-quart jug is formulated with elevated levels of ZDDP (zinc dialkyldithiophosphate), combining phosphorus with 2X more zinc than standard motor oils to deliver superior film strength and extreme anti-wear protection across pistons, cams, and bearings.

• High ZDDP Formula (2X Zinc) – Exceptional anti-wear protection engineered specifically for push-rod and flat-tappet engines, including classic muscle cars, vintage engines, and racing builds
• Alcohol Fuel Compatible – Suitable for gasoline and partial alcohol fuel blends in both track and street service
• Enhanced Anti-Foaming Agents – Maximum resistance to thermal breakdown protects high-compression motors against extreme stress and engine failure at high speeds
• Friction Modifiers – Boosts horsepower and minimizes heat buildup for peak performance under sustained pressure
• Proven Heritage – The original motorsports and muscle car engine oil, trusted by racers and enthusiasts since 1965

Specifications:

• SAE Viscosity Grade: 20W-50
• Flash Point: 394°F
• Volume: 5 Quarts
• Compatible Vehicle Type: Car, Truck
• Part Number: 881172
• API Rating: Meets or exceeds API SL and all preceding API gasoline categories

Note: High zinc formula. Not recommended for vehicles equipped with catalytic converters or in wet clutch applications.