supertech synthetic gear lube 75w-90

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I have used a lot of super tech 75w90 gear oil with no issue. I say go for it if you need to change. I usually run 100k on a open diff that does not tow much.
 
Originally Posted By: MolaKule
It's basically MAG1 Differential fluid.

Not for use in Manual Transmissions.


Why not? I used it before in my Subaru 5 speed. Did I screw it up?
 
Spartanfool,

You might want to try a dedicated manual trans fluid.

I run a mix of Amsoil's MTF and MTG.
 
Originally Posted By: Spartanfool
Originally Posted By: MolaKule
It's basically MAG1 Differential fluid.

Not for use in Manual Transmissions.


Why not? I used it before in my Subaru 5 speed. Did I screw it up?


I think some Subaru's actually spec a GL5 diff fluid in their manual trannies.
 
Originally Posted By: aquariuscsm
Originally Posted By: Spartanfool
Originally Posted By: MolaKule
It's basically MAG1 Differential fluid.

Not for use in Manual Transmissions.


Why not? I used it before in my Subaru 5 speed. Did I screw it up?


I think some Subaru's actually spec a GL5 diff fluid in their manual trannies.


Yes, it is spec'd for GL5.
 
Originally Posted By: Spartanfool
Originally Posted By: MolaKule
It's basically MAG1 Differential fluid.

Not for use in Manual Transmissions.


Why not? I used it before in my Subaru 5 speed. Did I screw it up?


Not if it is a Subaru with a common sump driveline system.

Ford XT-75W90-QGT Carries a GL-5 rating as well and does have the proper friction modification for manuals', whereas the SuperTech and MAG1 does not.
 
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