Red Line 75W85 GL-5 Gear Oil - 1 Quart 50104 | Popular in many late model BMW, Dodge, Jeep, Mercedes-Benz differentials, Toyota light truck, Lexus differentials and transfer cases. Contains additional friction modifiers for suitablity with clutch-type limited slip differentials - for most LSDs, no additional friction modifiers are required. This product is not designed for use in most manual transmissions or tranaxles with synchronizers, as extreme slipperiness may cause shifting problems. Known formerly as LightWeight Gear Oil. Also popular in many Formula racing transaxles, including Hewland LD-200 and FTR sequential. Satisfies the gear oil viscosity requirements of SAE 75W80, 75W, 80W, and 85W, as well as SAE 30 and SAE 10W30 motor oil. Recommended for API GL-5, GL-6, MT-1, MIL-L2105E, and SAE J2360. Fully-synthetic formulas created from polyol ester base stocks, offer excellent lubrication under extreme conditions. High viscosity-index (VI) to provide relatively constant viscosity and film thickness with varying temperature change. Ester base stocks and friction modifiers provide additional slipperiness to lower operating temperatures by reducing the sliding friction in hypoid gears. Superior shear stability and reduced oxidation compared to other synthetics and conventional gear oils. Exceed API GL-5 specifications. Engineered to provide the highest degree of protection and improvement of differential efficiency for better mileage, longer drain intervals, and less wear.