ok i went to the store and bought some gear oil for my diff... i bought 75w90, and then i got home and looked at my owners manual, and it says 90 weight. can i go ahead and put the oil in, or should i go exchange it for some 90 weight?

 

75w90 is fine...many of us run Mobil 1 75w90.

 

thanks

 

i found 75w-90 supertech semi-synthetic and full-synthetic at wal-mart. It works awsome in the S2000 diff.

 

lol, I think I'd take my chances with regular dino oil than with supertech. Iduno..maybe I'm wrong. But it just seems like crappy ass synthetic oil. Besides, how do you know it works awesome? It doesn't feel any different than dinosaur lube in a diff.

Why cheap out on diff oil? It only takes 1qt. Even if you bought oil that costs $20/qt, you only spent $20.

I've heard really good things about Amsoil's 75w90 GL5 gear lube. It costs $10/bottle and that's fine with me.

 

lol funny that you say that... that happens to be what i bought.

 

...super-tech is from penzoil. Its not even that cheap, $5qt for semi syn and $10/qt for full yn. I'll assume you think its cheap because its sold at a cheap ghetto store.

 

use motul. its high but its great!