I took my D into Jiffy Lube(cringe) to ask about the transmission flush and the tech said that they use penzoil synthetic multivehiclefluid. I looked it up on Penzoil's website and it says that it is recommended in ALL chrysler trannys.
Any thoughts.

 

NEVER... did I say... N-E-V-E-R get a trans flush of any of our Durango transmissions.

Have the pan dropped, replace the filter, adjust the bands if it is mated to a 5.2L or a 5.9L (not needed on the 4.7) and refill with ATF+4.

NEVER FLUSH OUR TRANSMISSIONS. Can I make that any clearer? The lines are not designed for it and WILL clog up over time due to a flush.

I suggest getting a real Mopar filter and ATF+4 in 2 gallons at the dealer and then take the D to a REAL trans shop for the service. The price will be less than 1/2 that of the dealer. Jiffy Lube isn't going to drop the pan, change the filter or adjust any bands thus avoid them. As for the real Mopar filter (superior to a trans shops aftermarket unit) and the real ATF+4 (the trans shop will try to talk you into their "its the same as" private blend) hold your ground on getting the real deal.

Also while you are doing your trans, perfect time to service the diffs. 75w90 Mobil1 if it were me in both and add the $9 little bottle of Mopar Limited Slip additive to the rear EVEN WITH the Mobil1.

As for Jiffy Lube doing ANYTHING more than an oil change... Google = Jiffy Lube and 20/20

IndyDurango <-- you can thank me later or curse the correctness after your flush failure, your choice.

 

Thanks for the heads up on the flushing. Bad news. It's already been done once. Not only yhat but they put someCostal brand fluid in it. I've never heard of Costal, but I'm guesing that it ain't too good.

I was thinking about going synthetic. Did I read it or dream it that Mobile 1 maked a synthetic ATF for our D. Do you know how to make the switch? There will be a considerable amount of fluid left in after dropping the pan method. Are synthetic and conventional compatable? https://dodgeforum.com/m_807830/tm.htm
Also, you had mentioned adjusting the bands. Is this a shade tree mechanic thing?

Questions, questions, questions!!!
Thanks

 

After reading the 14 page SAE paper # 982674
that Chrysler engineers wrote about how the
9602 ATF (called +4) was different
than other ATF's used in other transmissions
...I can't see how one ATF formulation could work for all vehicles.

I might believe that one ATF would work for Chrysler and Honda automatics, because the low friction coefficient spec is similar.

 

It can't. That milti use fluid I wouln't use that **** in my lawn mower. Get that stuff out of the trans NOW!

 

I was under the impression that ATF +4 would work in all vehicles though.

 

That's what my dealer parts man is telling me.

 

hmmmm...... I got my tranny flushed last year and put in royal purple ATF andno problems yet.