bmfm64
NAXJA Forum User
- Location
- covington wa
doin a transmission service... what fluid goes back in? i know transmission fluid, but what type? dexron mercon2 or 3 or something else? 99 xj with 4.0 and aw4/231 combo... thanks!
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transmission fluid...
- Thread starter bmfm64
- Start date
joe_peters
NAXJA Forum User
- Location
- Grants Pass, OryGun
Dextron III
bmfm64
NAXJA Forum User
- Location
- covington wa
thanks joe! finally getting to checking the solenoids!
- Location
- MilkyWay Galaxy
Nothing but Dex III.
ColoradoRaptor
Headbanging Hillbilly
- Location
- Canon City, Crawlorado
:bs::banghead: That is just BUNK info there!! I have been running +4 for over 3 years with grate results!! Please give correct info if you are going to do it!!
xcm
NAXJA Forum User
- Location
- Southern Oregon
+4? SURELY you are not talking about atf4? you should be banned for suggesting that, if that is indeed what you are saying.
joe_peters
NAXJA Forum User
- Location
- Grants Pass, OryGun
Actually, per Chrysler, through 2006 they were still insisting that ATF +4 was not suitable for use in the AW4.
Magically, in 2007, per Chrysler, it became OK to use ATF +4 in the AW4.
That is the official record.
Why did it become ok in 2007--well, if I was a skeptic, I would say that there wouldn't be anymore AW4s out there covered under warranty, so why not?
Of course, anybody is free to put whatever they want into their transmissions.
- Location
- MilkyWay Galaxy
joe_peters
NAXJA Forum User
- Location
- Grants Pass, OryGun
Or used beer! :roll:
wim hoppenbrouwers
NAXJA Forum User
- Location
- Netherlands europe
Or look at your AW4 drain plug. .:eyes:
- Location
- New Jersey
And not so magically, Chrysler seems to be bankrupt.
I wonder why :looser:
But seriously, I've seen this discussed forever. Since the AW4 is NOT a Chryco unit, it was never designed nor intended to use ATF +3/4. Dexron 3 is the fluid it was designed around. Hell, most Jeep dealers don't even know that AW4s have filters. However, the only folks who have no issues with ATF +4 in their AW4 drained ALL of the Dex 3 out first. Reason? Dexron and ATF +3/4 are incompatible. Why does this work? My only guess is that ATF +4 is a far superior lubricant than Dexron 3. Once the Dex 3 is gone, the ATF +4 can work properly. This is not gospel, its only conjecture from what I know about Jeeps and trans fluids. Would I do this? Hell no, its not worth it even if ATF +4 is a better lube than Dex 3. I've had synthetic ATF (Amsoil) in AW4 for almost 8 years. That's better then playing ATF roulette.
--Matt
