Valvoline VR1 SAE 20W-50 Synthetic Racing Motor Oil - 1 Quart Bottle Full Synthetic high zinc/phosphorus formulation 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 For any product use or product technical questions call 1-800-TEAM-VAL