Valvoline VR1 Racing Oil's high zinc provides race-level protection for high performance engines on the race track or the highway. Valvoline Racing Oil's exclusive chemistry is designed to reduce friction and enhance power. It is among the most popular engine lubricants in all types of racing including paved and dirt ovals, and drag racing. Formulated for race engines, but compatible with passenger vehicles too. High zinc/phosphorus for anti-wear protection, including push-rod and flat tappet applications. Formulated to increase horsepower. Enhanced anti-foam system protects engine during extreme stress. Recommended for engines burning gasoline and full or partial alcohol fuels.