Ensure you are using the only the best gear oil when servicing your Sterling differentials with the Schaeffer's Full Synthetic Gear Lube. This Extreme Performance Full Synthetic is designed for use in high performance differentials. Extreme Performance Full Synthetic is engineered from the highest quality of polyalphaolefin (PAO) synthetic base oils, a non-corrosive, extreme pressure additive and proven friction modifier, Micron Moly. This unique blend helps increase gear efficiency, providing smoother and less gear noise.
Extreme Performance Full Synthetic can be used in heavy-duty or high performance transmissions, aftermarket 5-speed and 6-speed separate motorcycle transmissions and final drives, including standard and limited-slip differentials and shaft drive transmissions requiring the use of an hypoid type gear oil. (Not recommended for Harley-Davidson Sportsters transmissions and combined engine/transmission sumps.)