Quote:
Originally Posted by boredincl
Correct, thanks for raising the fluid concern. I do hope my steps are clear that I still used ZF LifeGuard (or OEM equivalent) fluid. Substituting the pan and filter are one thing, replacing the fluid with something else is not good.
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I disagree with the fluid substitution and have been using cheaper substitutes for over 10 years with no ill affects. Many of my transmissions have gone well over 100k miles with other than ZF fluids. Ford didn't use the ZF fluid either.
Do you have first hand knowledge that using something other than ZF Lifeguard is "not good"?
Edit: ...maybe I am mis-reading your post. OE equivalent fluids are many and does not mean ZF Lifeguard. Fords "SP" fluid is an equivalent fluid as are many others on the market. With that said, ZF Lifeguard fluid is a very high quality and heat resistant fluid...thus, it probably has a longer life than many other "equivalent" fluids. So, I change fluid about every 60k miles.