What differentail and transmission fluid are you using? Do you enjot it?

[Flesh Eater]

Diffs, transfer case, and engine are all Amsoil. Transmission is Toyota WS.

Work fine for me.

 

[BradB]

Sorry to drag up this old thread but I recently got an 08 4R and wanted to change the diff and transfer case fluids.

I’ve had a gallon of Mobil 1 Delvac 75w90 sitting in my basement for a couple years. Is Delvac ok to use? I’m not sure how it’s different from the standard M1 75w90. Can they be mixed?

I’m assuming that the age is no issue.(?)

Thanks!

 

[2003V8LTD]

I need to put new fluids in the truck and am curious what fluids everyone is running.

For this type of thing I would absolutely, positively use OEM fluids. There may well be aftermarket ones that work fine but for a few $$ why risk it?

 

[Hi-desertT4R]

Valvoline full synthetic in t-case and both diffs. Almost fifteen years and no issues. Yes, it’s been changed several times in that span.

 

[Iceman710]

Ran mobile 75w-90 stock now lucas 85w-140 on 4.88.