Shaeffer's Full Synthetic 5W-50

Supreme 9000™ Full Synthetic Racing Oil 5W-50 is a high zinc, heavy-duty multi-grade engine oil designed for gasoline racing engines including those that contain flat tappet cams and those that are turbocharged or supercharged. 

Supreme 9000™ Full Synthetic Racing Oil 5W-50 is engineered with severely hydrofinished polyalphaolefin (PAO) synthetic base oils, severely hydrocracked synthetic base oils, a proprietary additive package and a viscosity index improver. Using proprietary friction modifiers, Micron Moly® and Penetro®, our racing oil creates a slippery, tenacious shield to prevent metal-to-metal contact. As conditions intensify, this high performance racing oil resists thinning, and shields critical engine parts from heat and wear. By reducing friction and wear, Supreme 9000™ Full Synthetic Racing Oil 5W-50 increases engine efficiency and extends engine life. With its high detergency and dispercency, our racing oil suppresses the formation of deposits, sludge and varnish and provides exceptional keep-clean performance.

Supreme 9000™ Full Synthetic Racing Oil 5W-50 is not recommended for 4-cycle, ATV or motorcycle engines specifying a JASO MA or MB, NMMA FC or FC-W 4-cycle oils.