Racing oils provide more wear protection than motor oils for passenger vehicles, however, these products contain fewer detergents and are not suitable for street use Details: Sold as 1 Gallon Reformulated for improved frictional properties Special detergents for improved lubricity and less detonation Polyol ester base stocks provide more stability and film strength when exposed to excess fuel dilution Each of these products has no less than 2200 ppm of zinc and phosphorus for anti wear Each race oil product is a multi-grade, offering 2 to 4 percent more power than oil of a similar viscosity - 20WT is a 5W20, 30WT is a 10W30, 40WT is a 15W40, 50WT is a 15W50 Improved protection at startup, lower oil temp, cleanliness Remember to change these oils more frequently than regular motor oils Versatile product used in stock car racing, road racing and sprint cars Used by many of the top Dirt Late Model teams Used by top teams in NASCAR, Spec engines for Camping World East and West Series Phosphorus, Avg PPM 2200 Zinc, Avg PPM 2250 SAE Viscosity Grade 15W40 Vis at 100 degrees C, CSt 14.5 Vis at 40 degrees C, CSt 93 Viscosity Index 162 CCS Viscosity, Poise, at degrees C 33 at neg 15 degrees C Pour Point, degrees C neg 45 Pour Point, degrees F neg 49 NOACK Evaporation Loss,1hr at 482 degrees F (250 degrees C), percent 6