ONLY ATF+4. If the vehicle has a lot of miles on it and the fluid/filters have not been changed in some time (I change mine every 30K, as fluid/filters are cheaper than transmissions), I'd recommend you do a complete fluid/filters change and add an oil pan with a drain plug....pan costs about $30-40. This type of change will require about 7-8 quarts of ATF+4. Personally, I use all Redline products in everything except the transfer case....more expensive but, IMO, better than most other oils/fluids.

If you don't have the fluid level to temperature chart that is in the Factory Service Manual, check the fluid when HOT (after about a 30 mile or so drive). Your fluid, HOT, will be somewhat higher than "slightly below the bottom dot", but you'll probably have to add maybe a half quart or so. Checking it HOT is the only real way of knowing for sure though.

 

When I did mine I think I used approx 9 qts of ATF+4. I found the dealer price actually less than the Valvoline ATF+4 at the auto parts store. I used Mopar filters and RTV. Not a fan of RTV, if I keep it long enough to change it again (only drive about 5,000 miles a year) for sure I'll get the pan with the drain plug and a Lube Locker gasket.

 

Hey Lou, How have you been? Having done mine a few times now, I've settled on a gasket coated on both sides with a thin layer of RTV. It seems to work pretty well and isn't such a bear to clean up. Also, re-torque the pan bolts after a few hundred milles will keep the seeps away. Because of the gasket, I am also careful not to over torque them.

On my last fluid/filters change at 120K, I discovered there are two different main filters. Don't remember what the other one was off of, but the only difference is the length of the big pickup tube that is shown in your picture. One is noticeably shorter. If you get your filters at the stealer it's probably not a problem but, if some folks get theirs from "Joe's Auto Parts" they need to be certain they have the right one or they could have a problem with the fluid pickup amount if they get the short one and it requires the long one or vice versa, especially if the fluid level is a little low or the long one is too close to the bottom of the pan it may not pick up enough fluid..

 

I've been doing fine thanks! Still looking at newer Jeeps but haven't found the one that will make me sell the '07. It only gets driven about 5,000 miles a year, has 123,000 on it.
The reason for the 2 different filters is that there are 2 different pans, the 2 Wheel drive version has a shallow pan, the 4x4 like we have has a deeper pan.
What I do is use a vacuum oil changer pump to suck out as much as I can get out of the pan, via the dipstick that makes it a bit less of a mess.
Oh and isn't it nice to have a dipstick? Have you seen the "procedure" needed to change & check the trans fluid in the ZF design HP 850 trans? What a pain! I saw a you tube vid on this, and the little port where you have to check the trans fluid, is right next to a cat converter, get out your fireplace gloves!

 

I can say, almost for sure, that I'll never have any vehicle with the ZF transmission in it. I am at the age now where I'll most likely be keeping what I have until they bury me in one of them. I am kind of like you though in that i'd be hard pressed to find something that would make want to get rid of the ones I have. I also think that the newer ones would be much more difficult to work on.....more complexity and electronics.

I am finding with my Tesla that it's so much smarter than I am and frequently outsmarts me on many fronts. After a little over two years, I am still not close to figuring it all out and, when I get comfortable with something, they do an over the air change that has me trying to relearn it. They do have "release notes" that explain what was changed and why, but most of the language and terminologies are mostly in what I would call nerd genius language....I understand very little of it unless it uses words/terms that are in my retarded English vocabulary. IMO, our "older" well maintained vehicles are much better. Oh, also the Jeep is, by far, my favorite to drive. That's because it sounds and drives more like the cars we grew up with. Although I like "quiet" more now, it's always nice to hear the sweet Hemi sound of the exhaust system.

 

PS
I have driven 5 different late model Chrysler products with the V8 & HP 850 auto trans:
Grand 5.7
Grand 5.7
Grand 5.7
Durango 5.7
Grand 6.4
I have to say I’m not a fan of the trans shift strategy on any of the 5.7 vehicles, they just don’t feel as fast as my old 5.7 with 30 hp less and 3 less gears…only the 6.4 in the Grand SRT really felt like it should. I get it they are doing this to get the EPA fuel consumption #s up but they don’t feel the way I’d want or expect.

 

I've only ridden in one Jeep with the 8 speed and it was the Pentastar one. I wasn't impressed either. It seemed like it was always shifting up or down. So, that's not a very good review of Chrysler's new and improved transmissions. I will say that modifying my 545RFE into a 6 speed did make a wonderful difference when driving around town or in the mountains. A year or so ago at the drags I raced a 2021 Jeep SRT8 and, how the SRT8 ran compared to my older slightly modded GCO,was not very impressive. really. I honestly believe that if I had the stock wheels/tires on it, I could have gotten a lot closer. The SRT rep. wheels and tires are nearly 3 times the weight of the stock setup. I am sure that makes a big difference.....I know wheel/tire weight on the Tesla makes a big difference in range.

https://www.jeepforum.com/threads/my-mildly-modded-06-5-7-overland-against-a-2021-gc-srt8.4459707/#post-41472701for

 

Thanks guys. ATF+4 it is.