Schaeffer Manufacturing 9003D-012 Supreme 9000 Full Synthetic Gasoline Engine Oil, 5W-30, 1 quart (Pack of 12) GM dexos-1 compliant. Improves engine durability without affecting fuel economy. Keeps engines cleaner: minimal sludge, soot and carbon buildup. Friction modified with Micron Moly and Penetro to reduce friction, wear and scuffing. Resists thinning at high temperatures; quickly lubricates in colder temperatures.