ErnesTT

My '01 TT is up around 80,000 miles and I was considering changing the manual transmission oil.

I called my local Audi dealer to get an estimate and they told me I should never change the transmission oil. They said it was a life time fluid and I would cause more problems by changing it.

I am sure I read other posts that recommended changing the fluid with Red Line 90.

So, who's right? Should I change it or leave it alone?

JohnLZ7W

New fluid at 80k is about the right time, Redline MT90, Amsoil GL4 or even factory fill will work.

heinzboy57

I changed to MT90 at ~110k miles. Felt a bit nicer. Do it.

DumpTTruck

My oil coming out was pretty dark too.

Joe Smith

The dealer does not care if they are not footing the bill.
Yes, it should be fine with no change. But yes, it will last longer and shift better with an oil change.

SparTTan

I just changed mine for the second time at 160,000 miles. Transmission felt the same before and after the change; I did it more for preventative maintenance. The drain plug has a magnet, which had collected a nice layer of metal shavings. I used Redline MT90. You can use any synthetic 75w-90, including the OEM fluid.

pattreek

x2

VelveTTrevolvr

I would change it, Redline works wonders for my tranny

typ44q

Re: x3 I have been using Redline in all my cars for years and really do think it helps