Royal Purple oils and additives are for high performing vehicles, which includes a lot of GM Vehicles. Race proven, Royal Purple is America's #1 brand of high performance lubricant. You simply can't buy a better brand of motor oil when it comes to protecting your engine in extreme conditions.
Royal Purple oils and additives aren't just for racing. Many truck owners who tow or haul use Royal Purple, as do serious off-road enthusiasts. Whatever your vehicle, find the oil or additive you need below.