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I drive hard/autox/roadcourse... I also have 4.11 gears installed.
Should I use Mobil1 75W-90
Also who makes tranny fluid for my car? Mobil 1 etc....
I dont think i want to use redline so who else makes the tranny fluid? thakns
Re: ? regarding diff fluid and trans fluid? (RMilla17)
I use Amsoil Universal ATF (synthetic) for tranny and Amsoil Series 2000 75W-90 for diff. GM does specify ATF for the tranny. Mobil1 synthetic gear oil is good enough for the diff and most synthetic gear oil doesn't need limited slip additive and putting too much additive makes the lubricant too slippery for the LSD.
Redline products are also superior, I'm just cheap :)