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 5 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 2-4 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 Consistent wear and operation in drag racing classes like Stock and Super Stock (many switch to 5WT for Class Racing) Popular for qualifying in stock car engines Used by many top engine builders in Spec Miata and other low-power road race engines For Four-Cycle kart the Honda GX 200 and GX160, A Yamaha/Burris F200, Briggs and Stratton LO 206/World Formula/Animal, Kohler, Techmseh and Clones Phosphorus, Avg PPM 2400 Zinc, Avg PPM 2250 SAE Viscosity Grade 5W20 Vis at 100 degrees C, CSt 7.6 Vis at 40 degrees C, CSt 44 Viscosity Index 139 CCS Viscosity, Poise at degrees C 30 at neg 25 degrees C Pour Point, degrees C neg 50 Pour Point, degrees F neg 58 NOACK Evaporation Loss,1hr at 482 degrees F (250 degrees C), percent 6