So im about to do the tranny and diff oil changes.

i decided to go the amsoil. have been really satisfied with the engine oil so why not?

for the tranny i think i will go with this:
http://www.amsoil.com/StoreFront/mtg.aspx

and for the differential... which one to go with?
i know im suppose to use 75W-90... but there seem to be 2 of them on the amsoil site.

http://www.amsoil.com/storefront/svg.aspx
OR
http://www.amsoil.com/storefront/fgr.aspx

thanks! im pretty **** and would really like to know that i am using the correct and best fluids!

 

Either of those diff oils is okay; the second (FGR) is just a longer-life blend for a 500,000 mile service life. The SVG is fine for our cars, I'll be changing to that myself soon.

 

hmm isnt the severe better?

 

 

500,000 ????? So basically good for the life of your car.

 

I use the first oil and the third oil in the links you provided. Severe 500,000 is not needed imo since I change mine every 30k... Plus I would not feel comfortable with not changing the diff or manual tranny oil that long.

 

^^ Exactly, it's overkill. It's meant for road rigs that actually have a service life of a million miles or more.