features/ benefits Super S SuperSyn PCMOs are full synthetic motor oils featuring advanced viscosity control and shear stability; they maintain performance in the harshest conditions and for extended oil drain intervals, and provide: the lowest levels of weighted piston deposits - far exceeding industry specs the highest level of high temperature deposit control wear protection so effective it is measured in atoms per hour the most advanced protection against varnish, corrosion, sludge, and foaming to prolong the life of your engine the highest established levels of fuel economy extremely low volatility, which reduces oil consumption Super S SuperSyn PCMOs exceed GF-5 and even the more stringent dexos1 specifications for oxidation control, wear control, cleanliness and sludge, and emission system and seal compatibility.