Subaru Enthusiasts Car Club of the Sierras - View Single Post - Which trans oil are people using around here in 5MT?

cody · 2009-04-19, 04:35 PM

Redline 75-90 does belong in the rear diff. Redline 75-90NS is probably fine too though. As I said, our rear diff is not picky as per what I've read on the internet.

I have Mobil-1 synthetic 75-90 in my rear diff (which is probably comparable to Redline 75-90).

I'd say you're okay with the Redline 75-90 in the gear box as long as you can shift without grinding. The thought is that the 75-90 is just too slick for the synchros but if you can shift without grinding, you're fine.

2009-04-19, 04:35 PM	#50
cody Candy Mountain Real Name: Cody Join Date: May 2005 Location: Californication Posts: 7,751 Car: 03 Pussy Wagon, now with more pink! Class: TESP OMG Internet!	Redline 75-90 does belong in the rear diff. Redline 75-90NS is probably fine too though. As I said, our rear diff is not picky as per what I've read on the internet. I have Mobil-1 synthetic 75-90 in my rear diff (which is probably comparable to Redline 75-90). I'd say you're okay with the Redline 75-90 in the gear box as long as you can shift without grinding. The thought is that the 75-90 is just too slick for the synchros but if you can shift without grinding, you're fine. __________________ Slow and low, that is the tempo.