XPR - Extreme Performance Racing Synthetic Engine Oils
ProAm Auto Accessories - XPR - Extreme Performance Racing Synthetic Engine Oils
Royal Purple's very best synthetic racing oils. When only the very best oil will do, choose an XPR for your race engine. High levels of ZDDP and other Synerlec additives, XPR is for high horsepower, high stress engines. Not meant for extended change intervals, it is not recommended for high mileage street use.