Redline Oil Gurus: Subaru gear oil question

Joined
Feb 9, 2005
Messages
2,290
Location
Arizona
Okay, 'old' thread and all, but Red Line's 75W90NS product is the correct one for the manual transmission. It is also perfectly fine in the non-limited-slip rear diff. Use it in both. Or, go with Trav's suggestion of Castrol's Syntrax. That's built w/o the LSD friction modifiers, just like the Red Line 75W90NS product.
 
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