Transmission and transfer case fluid change/reset - BIG difference

[Spartan]

Originally Posted by wpoll

Nope - not the same transmission - the 3.0i uses a GM transmission while our 3.0d uses a ZF.

The GM transmissions use regular Dexron ATF while the ZF transmission uses ZF Lifeguard fluid.

Not sure about your trans, Spartan, but mine (a ZF 6HP26X aka BMW GA6HP26Z) has the fill port on the bottom of the valve body cover...

No, you are right Wayne...I was under it yesterday looking at before I do some insane thing involving a box of matches, a quiet place and an X5...

I considered the possibility of the fuel pump being blocked again as one idea, but it wasn't. Then I saw this other thing like a fuel filter, but it is a fuel pump and some small P.O.S. thing that is not listed in OEM Parts, I'm guessing a relay, but they all seem to work.

So I considered the trans might or could do with a fluid change. A lot of people advise against changing it all in one go and suggest drain and top up each time over a period of months. But how do you do this if both are on the bottom?