Hello, I know this has been discussed but I cannot get a clear answer.
My 1988 Mercedes 420SEL calls for either SAE 90 or 85W90 for the differential. Not limited slip.
Can only find 85W90 from liqui molly but it is dino.
Closest to this weight I found is amsoil 80W90 synthetic. I live in florida so 75w-90 is probably not needed.
Any advice? I hear they say “new” 90wt oils are thinner than the old ones which concerns me for my 34 year old car.
Thank you in advance.
My 1988 Mercedes 420SEL calls for either SAE 90 or 85W90 for the differential. Not limited slip.
Can only find 85W90 from liqui molly but it is dino.
Closest to this weight I found is amsoil 80W90 synthetic. I live in florida so 75w-90 is probably not needed.
Any advice? I hear they say “new” 90wt oils are thinner than the old ones which concerns me for my 34 year old car.
Thank you in advance.