List,
I do have a positive experience using Redline MT-90 in my gearbox. I took
my overdrive box out of a rusted out parts car, and was out of money so the
only inspection I did was to pull the cover and make sure the gears weren't
chipped. I decided to experiment and try the MT-90. It really has worked well.
The shifts are awesome, and I can up and down shift without using the clutch. I
was very afraid that the overdrive would slip with the synthetic oil, but it
never did. I had this transmission attached to a warmed over engine that dynoed
at 135 rear wheel hp. I specifically remember a time when I forgot to turn off
the OD (the last time I ever did it) when I was running the car pretty hard;
there was only a slight slip when shifting from first to second @6,000
rpm...oops. I autocrossed the car for a season and a half, and I drove it many
miles on the street and never had any problems with the tranny. I also ran
Redline 10w40 in the engine and did not lose any cam lobes or thrust washer
clearance. I should probably also note that I never sit at a stop light with
the clutch pressed. Is it the general consensus that the correct weight engine
oil should be 20w50 even if its Redline. The Redline tech support guys
recommended 10w40...what do you guys think??
thanks,
Ryan Miles
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