This is a discussion on Oil for Rear Diff in 2004 wrx? within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Hi I've got a 2004 wrx and I'm about to get the transmission and rear diff oil changed. I've already ...
Hi I've got a 2004 wrx and I'm about to get the transmission and rear diff oil changed. I've already got 5 qts of Subaru Extra S off Fredbeans for the gearbox but I was wondering what oil I should put in the rear diff?
Would Mobil 1 or Valvoline 75w90 be ok?
What about using the Extra S in the rear diff - does anyone use that?
Thanks wrx_wagone, do you mean yes to both questions?
I put Valvoline 75w90 in both my front trans and rear diff--it works fine.
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