Mobil 1 Racing 0W-50 is a full synthetic motor oil designed to maximize power output while providing outstanding durability for race engine protection. Mobil 1 Racing is for track use only and not recommended for street use. Provides boosted levels of anti-wear protection beyond those of typical automotive engine oils (nominal phosphorus level of 1750 ppm), exceptional high-temperature protection in high RPM engine operation (up to 204 degrees Celsius), are specially balanced for friction reduction and increased horsepower.