re: transmission and differential oil

["George Boudreau" <george@xxxxxxxxxxxxxxx>]

Mark wrote:
Use D4-ATF in the transmission (even when out of warranty, according
to Redline) and 75W90 in the differential.  Do NOT use 75W90NS in
the differential - that's for non-limited slip cars.  You'll get
differential chatter if you do.
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Just curious,
If you have a non-LS differential, does it hurt to use 75W90; should you
only use 75W90NS? I have 2 quarts of 75W90 on my shelf and I am going to put
it in my 83 323i (E30) w/nonLS.

George

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