Since I am planning a big service. I was thinking of changing all the oils and fluids as well. But on searching this forum I found not so much about the front diff. So does it ever need a change? Or is it included in the gearbox, so you change theme both in the same time? I found the following info on which oils to use:
75W-90 for the gearbox (about 3 liters)
75W-90 or 90 (which one is Audi OEM?) for the rear diff (about 1,5 liters)
75W-90 for the gearbox (about 3 liters)
75W-90 or 90 (which one is Audi OEM?) for the rear diff (about 1,5 liters)
Comment