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Oil Change
Posted: Sat Mar 28, 2009 2:21 pm
by RonDwyer
Changing to synthetic on a used transmission won't get you any kudos from Steve Dinan. It wore in on a heavier oil and thinner oil will speed the destruction of the gearbox. This was all out of a tech session I set up at Dinan as the local CCA chapter technical director in 1990.
Trans Oil
Posted: Thu Apr 02, 2009 11:57 am
by BradInTexas
So what did they suggest? Mobile One is the only non-GL5 I could find that was available, and I am not very happy with it. It is 80W-90W, so not sure about the "thinner" part. It definitely will find the escape protals in any seals.
Posted: Thu Apr 16, 2009 11:09 pm
by RonDwyer
The rule as I recall was to put in what the factory designed it for.