Quote:
Originally Posted by AT-JeffT
Are you talking about the extra s Subaru fluid? I believe that is GL5. However I'm using the regular 75w90. I can't find a GL rating for it online but I believe it is either GL3 or 4.
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I don't know the specific difference between the two lubes, but if the "regular 75W-90" lube is meant to be used in their transaxle cars, I'd bet it's also GL5 rated due to it's intended use with hypoid gears.