Recommended for truck and automotive differentials, outboard motor lower units, rear axles, and manual transmissions requiring API fluid, Max Gear is designed for maximum protection in heavily loaded gears, boosting power throughput in the drivetrain, Virtually eliminates gear and bearing wear even under severe conditions like high loads, shocks, or low RPMs, Synthetic molecules enhance cold weather fluidity and lubricity, making it ideal for vehicles in cold climates.