Quote:
Originally Posted by chipmunk
Subaru only has GL-5 now as their OEM manual transmission fluid.
I emailed Subaru of America several times to confirm that it's OK to use Subaru OEM oil that states GL-5.
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So what that tells me is Subaru decided it was cheaper to only keep GL5 around, so they re-specified the transmission to take GL5 for supply chain purposes. I doubt the transmission was actually changed in any way.