I'm having trouble finding 75W-90 Castrol. What is the best gear oil to use that most local parts stores could order for me?
My local Oreilly's carries 75W-90 Redline , and its also available by Amazon prime. Used it in my Miatas for many years without issue.
If you can't find Castrol valvoline is a good option. It never burned in Frakencoupe diff.
I put Mobil 1 gear oil in my diff when I last dropped and serviced it. I think I got it from AutoZone. No complaints here.
Bookmarks