Lubricants used for gearboxs (manual or automatic) and the rear differential in your vehicle are different from those used for the engine. Transmission Lubricants have a life much more important. They must last 120000 miles for a truck or even the lifetime of the vehicle for some models such as Mercedes-Benz. Transmission lubricant must be chosen in accordance with the recommendation of the manufacturer of your vehicle.
Gear 300 75W90
100% synthetic lubricant for all...
Moly reinforced for "noisy"...
Mineral lubricant designed for gearboxes...
Transoil Expert 10W40
Technosynthese lubricant designed for...
Gear Competition 75W140
100% synthetic racing lubricant based on...