Used in applications with wider bearing clearances. Popular in fast and midget applications with methanol - offers less frequent oil changes due to less fuel dilution. Racing oils provide more wear protection than passenger vehicle motor oils; However, these products contain fewer detergents and are not suitable for street use.
Reformulated to improve friction properties. Special detergents to improve lubricity and less detonation. Polyol ester bases provide more film stability and strength when exposed to excessive fuel dilution. Each of these products has no less than 2200 ppm of zinc and phosphorus as antiwear. Each racing oil product is multigrade and offers 2% to 4% more power than oil of similar viscosity: 20WT is a 5W20, 30WT is a 10W30, 40WT is a 15W40, 50WT is a 15W50. Improved starting protection, lower oil temperature and cleanliness. Remember to change these oils more frequently than normal motor oils. Phosphorus, average PPM 2050 Zinc, average PPM 2350 SAE 15W50 Viscosity Grade Vis @ 100°C, CSt 19.2 Vis @ 40°C, CSt 135 Viscosity index 141 CCS viscosity, equilibrium, @ 35°C@-15°C Pour point, °C -45 Pour Point, °F -49 NOACK Evaporation Loss, 1 hour at 482°F (250°C), % 6