- Gearbox oil effect
- Reduce friction and wear
- Lubricate bearings
- Rust protection
- Cooling
Gearbox
MTF specifications: API GL-1, GL-2, GL-3, GL-4, GL-5, MT-1
Automatic transmission
ATF specifications and current fluids:
- Dexron – GM: Dexron II, III
- Mercon – Ford: MERCON III, IV
- Toyota: Type IV
MTF OIL
Mechanical gearboxes for trucks and boats should use API GL4 and GL5 gear oils, SAE90, SAE 80W-90 viscosity grades, etc.
Transmission oil change time:
– From 30,000 to 40,000 km (16,000 – 22,000 nautical miles)
– Or 3 times change the engine oil, 1 time change gearbox oil.
ATF OIL
Automatic transmissions using atf diii and above
Oil change atf time is 50,000km
