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Redline MT 90?
Posted 16 June 2004 - 06:48 PM
Posted 16 June 2004 - 08:57 PM
Posted 16 June 2004 - 10:22 PM
anyone have any opinions on the redline mt 90 gear oil? a friend gave me 3 quarts, and i'm wondering if it's good for my 94 legacy (both tranny and rear diff?) if good, where can i get some more?
MT-90 is wonderful but will not work for a Subaru.
It will also not work for your rear diff.
Remember that Subaru MT and transaxle share fluid unlike many cars trucks.
I emailed Redline and ask them what I should use in my Subaru, because I have had such success with MT-90 in my other vehicles.
Here is the response from Redline.
>Request Type : Technical Request
>Message : Hello
>I am trying to figure out what type fluid I should run in my vehicle
>manual transmissions. I have used your MT-90 in multiple vehicles
>with great success.
>My question revolves around running a GL4 transmission fluid in a
>Subaru where the transmission and front differential share the fluid.
>The factory recommends using GL5 fluid but I have run GL4 in most
>all my manual box and the difference between running GL5 and GL4 is
>night and day, with the GL4 working sooo much better.
>What type of fluid would you recommend I run in a Subaru with shared
>transmission and front differential?
In your Subaru transaxle where the GL-5 gear lube is called for I
would recommend the 75W90NS, I would expect the shiftability to be
close to the MT-90. The NS fluids have no friction modifier so are
not to slippery for the synchros the problem with most GL-5 gear
oils. The 75W90 would be suitable for the rear differential.
Red Line Oil
Posted 16 June 2004 - 10:48 PM
i tried redline 75-90NS in the tranny and it had shiftability problems just the same as when i used the mobil 1 75-90 in the tranny.
it really matters not to me that it is a gl-4, it works the best.
btw, i use redline mtl in my transaxle of 95 corolla since new and it is a gl-4 and it has 180k miles on it with better synchronization than the sube.
not trying to be belligerant here, i just found from experience what works the best. the mt-90 really smooths out the 2nd to 1st downshift, ie: you don't have to come to an almost complete stop to make the shift.
i think you'll need slightly more than 3 qts though.
also, for the record, i used mtl in manual zf trannys on 92 vette zo-7 and 91 zr-1 and had no problems at all period.
99 leg l sedan 2.2l 5-sp anniv edition 75k miles
Posted 16 June 2004 - 11:37 PM
Posted 18 June 2004 - 07:59 AM
It really is the canine's testicals. Or the feline's night gown, if you prefer!
I have tried Redline NS, and it works fine for a short while, but then it turns to water and kerr-RUNCH!
Posted 18 June 2004 - 09:15 AM
Posted 18 June 2004 - 01:50 PM
it's all about what works for you. opinions will vary.
Posted 19 June 2004 - 01:45 AM
Is it likely that Mother Nature many hundreds of thousands of years ago thought to herself: "Hmmm, shall I wipe out these trees with another forest fire? Or should I topple them into those mud holes and let them slowly degenerate into oil. Yes! Oil just perfect for lubricating the internal combustion engine which I will have some of my children create in 800,000 years. Hmmm....OK, mud holes it is!"
Or could it be that the creatures who invented the IC engine would know just what components to put into a lubricating fluid?
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