Redline oil, continued

[Michael O Muller <mullerm@engin.umich.edu>]

My recent post about the use of Redline oil in the manual transmission has
raised some questions

1. Several people mention using Redline MTL, and is it better/worse than
MT90? (Evidently MT90 is a new product?)
Basically, I naively took my car to a mechanic, and asked for Reline oil
in the transmission, as recommended by the qlist. He used MT90-Q, per the
receipt. Based on the Redline webpage, MTL is a 75W/80W GL-4 gear oil, and
MT90 is a 75W90 GL-4 gear oil. Not much difference, from what I can tell.
The MT90 is a bit heavier? Their description of the two different products
is identical. 
http://www.redlineoil.com/gearoil.htm

2. Do I have a quattro? And, how does the transmission oil interact with
the torsen system?
I have a 2wd Audi, and I do not know how the quattro system work, nor how
it is connected with the transmission.

HTH
Happy shifting!
mike.

86 5ks, 170k