Re: How do I change the trans fluid ??? B3 Auto (BadAssCorrado)
Please, please, please! Do not listen to or continue to pass on this ridiculous notion that ATF should not be changed, or should not be changed if it hasn't been changed in a very long time.
New oil is always, always, always better than old oil. Synthetic oil is always better than natural oil.
Do not believe the old wives' tales about old ATF "holding together your transmission" or synthetic oil damaging seals if natural oil has been previously used. These notions are fallacies that have absolutely no basis in scientific fact.
VW specifications for the automatic transmissions in use around 1993 are ATF replacement at every 30,000 mile service interval under hard usage conditions. This is pulled straight from the 1993 Maintenance booklet that was delivered with my Passat.
Using Mobil 1 ATF and changing it every 30,000 miles, I have now accumulated over 188,500 miles (or over 300,000 km) on my 1993 Passat.