Royal Purple racing oil 20W-50

XPR eXtreme Performance Racing oils are formulated for applications such as racing, modified engines and off-road use. XPRs high film strength make it exceptionally well-suited for todays high performance cars and trucks, particularly turbo and supercharged engines and / or engines using a nitrous boost. XPR produces winning results on the race track and is safe enough to use in your daily commuter car. Professional engine builders and race teams cite increased horsepower and torque, and longer engine life with the use of Royal Purple and independent tests performed on racing engines show as much as an 80% reduction in wear.