1995 XJ - Which transmission oil?

[skiman]

Gents,

i've been a bit of reading today about transmissions, and there seems to be some debate about which oil to use in the 1995. Am i correct that my auto is an AW4?

What transmission oil should i be using please?

I read this today on NAXJA and it confused the heck out of me:
(just wondering if i've put the wrong oil in it from the servo!!)

From Allpar.com:

This is from the Center for Quality Assurance site (as of July 24, 200: “ATF+4® is approved for use in older transmissions and is currently utilized in newer Chrysler®, Jeep® and Dodge® vehicles. The previous MOPAR ATF+3® formulation was discontinued in 2005 and ATF+4® is recommended for all transmissions filled with ATF+3®.”
There is an important exception for Jeep owners. As Danny noted, "The Jeep AW-4 (Aisin-Warner) transmission should use Dexron III." Greg, a DCX tech, wrote that the AW4/AX4 transmission was used on 6-cylinder Jeep Cherokees through the end of production, and on the first six-cylinder 1993 Grand Cherokees (built in 1992 and 1993), but on the Grand Cherokee it was phased out midway through the 1993 model year. This transmission requires Dexron, while the 42RE / A500SE which replaced the Aisin-Warner transmission midway in the 1993 model year needs ATF+4. Again, if you are confused, you may just want to try one of the new universal fluids that is both Dexron and ATF+4 compatible.

[kyphonii]

Originally Posted by skiman

Gents,

i've been a bit of reading today about transmissions, and there seems to be some debate about which oil to use in the 1995. Am i correct that my auto is an AW4?

What transmission oil should i be using please?

I read this today on NAXJA and it confused the heck out of me:
(just wondering if i've put the wrong oil in it from the servo!!)

You would be correct

[skiman]

Thanks for confirming.

...so i should be using Dexron III or "one of the new universal fluids that is both Dexron and ATF+4 compatible"?

The oil i used from the servo is Caltex Texamatic 1888 (which says "meets former Dexron III), but doesn't say if its synthetic or mineral.

The oil i bought from Autobarn the other week (but not used yet) is Penrite Fully Synthetic ATF FS (which says GM Dexron -IIIG/H). Also says it will mix readily with mineral and synthetic.

Would there be any issue mixing the two?

Also, is it ok to fill the transmission oil via the dipstick tube or do i need to fill it via fill hole plug? (forgive me the seemingly stupid question, but im as green as they come, when it comes to engines and mechanical)

Since i dont know the service history of this vehicle, should i be considering completely draining the transmission oil (incl transfer case) and putting new oil in? (perhaps a good job when i fit the oil cooler).

The learning curve continues!

[Windex]

Fill it by the dipstick hole