| Sorry for the delay. The following oils are suitable according to the WIS for Gearbox G32:
Gear Oil MB 317 by Exxon Mobil
MB 235.10 Schaltgetriebeöl A 001 989 2603 by Mercedes Benz.
It states that these are SAE 75W/85W oils so your friend might be right. Gearbox oils contain additives such as phosphorous and sulphur compound which allow the oil to lubricate between the teeth of mating gears even when highly loaded (so call EP or 'Extreme Pressure' gear oils). Its possible that they contain other additives like corrosion inhibitors, etc. Just a thought?
Cheers
Adam. |