Redline High-Pro gear Oil?
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Angry Dan
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From: www.turboculture.com
Car Info: 05 Evo VIII
Redline High-Pro gear Oil?
Well I have around 14,000 "fun" miles on my STi and would like to change my Trany fluid. So I went to my local Redline store and picked up some 75W90 Redline High-Pro gear Oil.
The bottle says that's it's GL5 rated and it's the weight that the owners manual recommends but........
On the back of the bottle it says......"This product is not designed for use in most manual transmissions, since the extreme slipperiness may cause gear clash."
Now I know the STi 6-speed isn't most "manual transmissions" so you think I'm good to change the fluid out w/ the Redline fluid?
The bottle says that's it's GL5 rated and it's the weight that the owners manual recommends but........
On the back of the bottle it says......"This product is not designed for use in most manual transmissions, since the extreme slipperiness may cause gear clash."
Now I know the STi 6-speed isn't most "manual transmissions" so you think I'm good to change the fluid out w/ the Redline fluid?
Last edited by Mach5WRX; Jan 11, 2004 at 09:34 PM.
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Joined: Aug 2003
Posts: 824
From: Austin, TX
Car Info: 2002 WRX Sedan - Silver
I don't own an STi, but when I changed mine, the shop recommended Amsoil 75w90 over RedLine, & they sold both. You may want to check out Amsoil if the RedLine isn't going to work with your tranny. I've been a happy customer with it too, if that counts for anything! 
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From: Reno, NV
Car Info: 1993/2000/2001 GF4 mostly red
Amsoil is more profitable for its dealers than Redline, so almost all of them will recommend it. If you want to run Redline, get either Superlight Shockproof or 75w90NS. Both are better for the synchros than standard 75w90.
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Originally posted by SHADO
If its a slippery oil it will take longer for the synchros to work, which is not good
If its a slippery oil it will take longer for the synchros to work, which is not good
So THATS why my 5th gear takes 8 whole seconds to engage without grinding
Damnit...
Well at least it's not the worn out synchro I had thought it was...
-DE
Originally Posted by DoomE.Q.
So THATS why my 5th gear takes 8 whole seconds to engage without grinding
Damnit...
Well at least it's not the worn out synchro I had thought it was...
-DE
Damnit...
Well at least it's not the worn out synchro I had thought it was...
-DE
Redline MT-90 is much better for your synchros.....
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