Joe Gibbs Driven XP1 is a fully synthetic engine oil with an SAE of 5W20 and has been developed for use in high revving high power output competition engines. XP1 competition oil is formulated using anti wear and friction reducing additives to increase horsepower and protect engines with tight tolerances. It is compatible with methanol and high octane race fuels and provides increased durability under high loads.Ideal for heavily tuned engines or where you are chasing any incremental improvements in performanceHas the ability to transfer heat and greater shear stability will provide improved performanceDeveloped through years of R&D in the demanding world of NASCARIdeal for naturally Aspirated Honda and Subaru Engines and also Briggs & Stratton animal and V twin race engines.1 Quart (0.94 litre) bottle