Patterson Racing uses XP2 synthetic engine oil. XP2 features the same anti-wear chemistry as our Driven by Joe Gibbs race proven XP1, but utilizes a lightweight base oil for increased horsepower without decreased durability in engines. It's SAE 20 weight viscosity makes XP2 a very versatile oil but it is light enought to run in a Pro Stock engine. XP2 works well in NHRA Stock Eliminator, Super Stock and Comp Eliminator engines. XP2 performs the best in tight clearance, low RA surface finish and/or moderate temperature applications (130°F to 220°F). Case of 12 Quarts.