Transmission Fluid Level- Park Vs Neutral

[Matt]

Exactly.... I dont want to rebuild a trans because ive been using an "incorrect" measuring method..... even if its a screw up from Chrysler in terms of dipstick markings.

[07JeepXK]

I just spoke to my older brother who work at a transmission shop and has a lot of experience with the 545RFE and he said it really doesn't matter if you do it in park or neutral. He said if you have the correct amount of fluid in the trans either method will still fall in the cross hatches on the dip stick.

I have always went by the dipstick and checked it in neutral and never had an issue and have almost 126,000 miles on my XK. I'd personally rather go with what the dip stick says than an owner manual that has been known to have misprinted info in it.

[Matt]

He said if you have the correct amount of fluid in the trans either method will still fall in the cross hatches on the dip stick..

Yeah thats pretty much what I found. In N my fluid level went higher, but still within range.

I'd personally rather go with what the dip stick says than an owner manual that has been known to have misprinted info in it.

Well its 3 source vs 1 now. The owners manual, the factory service manual, and a CSR representative all say the dipstick is "wrong" and the "correct" method per Chrysler is to use Park. I'm amazed that they haven't updated the dipstick yet.

Only way I can really see using Neutral being an issue is if you fill it on the "low" side. Since I found the N reading to be higher, you may end up slightly under-filled.