Red Line® 75W90 GL-5 Gear Oil is the most popular Red Line gear oil, with thousands of applications for passenger cars, light trucks, and racing vehicles. Red Line® 75W90 GL-5 Gear Oil contains additional friction modifiers for suitability 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 transaxles in passenger vehicles, since the extreme slipperiness may cause synchronizer mesh issues that lead to shifting problems. Recommended for API GL-5, GL-6, MT-1, MIL-L-2105E, SAE J2360, and Chrysler spec MS-9763.
Red Line® 80W140 GL-5 Gear Oil is popular in stock car racing differentials and transmissions. This product 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 manual transmission or transaxles with synchronizers, as its slipperiness may lead to shifting problems. Recommended for API GL-5, GL-6, MT-1, MIL-L-2105E, and SAE J2360. Sold in quarts.