Well last week I finally found the time to change the oil in the gearbox, after buying all parts from TPS, My boss opened an account mainly for me but he does have a Audi.
Well it was worth it the colour is like chalk and cheese and it did smell burnt.
My Audi has done 161000 miles with no oil change to my knowledge, I also tow a caravan sometimes.
This may help you decide for yourself, My brother has a pit in his back garden.
Hopefully these photo's will help some decide.
David