Anyone tell me the difference? ?

I am having a heck of a time trying to find 75w-85 GL-5 diff oil. I have a 2012 4cyl auto and thats what my manual calls for. No problem finding the 75w90 GL-5 but not the 75w85 GL-5. Is there that much difference between the 85 and 90? Or can i go ahead and use the 75w90 GL-5?? Thanks so much... Frustrated!

 

You can use the gl5 75w90.

And my 2 cents is to go synthetic

 

The T-case calls for the 75w90 as well, is it all the same?

 

I got the 75w90 synthetic LS?? Is that ok to use in the diffs AND the T- case?? Sorry im all new to this stuff.

 

So long as its gl5 you should be good

http://en.m.wikipedia.org/wiki/Gear_oil

Some basic gear oil info