If so what oil did you use (75w90 gl-5??) and did you feel any difference? At what mileage should it be changed?

 

i've been wondering the same thing. base model here with 54k never been changed. I was probably going to put stock back in it though.

 

If you do change it you will find lots of shavings and black sludge stuck to the magnetic plug. It usually takes 2 or 3 changes to get rid of all the metal in the differential. I would do the change ASAP. I did 3 changes in the first 5000 miles and it has stayed perfect ever since.Synthetic is great for cold climates. I didn't feel any difference in performance though.

 

i changed my to amsoil

tranny
https://www.amsoil.com/storefront/mtg.aspx

diff
https://www.amsoil.com/storefront/svg.aspx

 

same here , but i have the vlsd in mine. the tranny oil change is noticable

 

Royal Purple 75w90 MaxGear GL5 in my Diff - Base model, as well.

Changed every 20k miles. (<--****. don't necessarily have to do it that often)

 

Motul Gear 300 for my diff...shifts a whole lot better

 

I'm not seeing how changing your diff oil will make your car shift better. Now changing your tranny oil out, I would expect better shifting with that.

OP: with an open diff, you're not going to see any difference or performance increase by changing out your diff oil. Just follow the recommended service guidelines for it.

 

x2. . .found a few shavings. . .kind of expected since i went to drift/auto-x all summer