VP Pro Grade SAE 5W30 Full Synthetic Racing Oil delivers superior durability and friction control for maximum power and protection. We blend it with leading-edge chemistry for race track applications, and its advanced technology helps you perform and succeed. Pro Grade 5W-30 synthetic oil is for professional, semi-pro, and high-intensity amateur racers. However, it is NOT compatible with either top-fuel/nitro drag racing or catalytic converters, which are on most street cars. Furthermore, DO NOT mix oil additive supplements with any VP Professional Grade Full Synthetic Racing Oils. VP Pro Grade is dyno tested and track-proven. Best-in-class SAE 5W-30 synthetic racing oil - when results matter.