Hollywood1 Posted Wednesday at 07:09 PM Report Share Posted Wednesday at 07:09 PM I just thought I would write a quick post about some maintenance that I performed yesterday. I am on my second edge ST now coming from a 2020 to a 2024. I've got about 16,500 miles currently. Yesterday I did a complete fluid change. The radiator fluid tested fine and was pretty easy to swap. The rear differential was very dark, almost black and the new fluid is a caramel color so it was definitely at the end of its life. The PTU wasn't as bad, but definitely a dark, dark brown whereas the new fluid again is a caramel color. I also figured that it would be a good idea to do a transmission drain and fill since I've been getting a hard 1-2 shift. The transmission fluid definitely had a slightly burnt smell to it and was nearly black and the new fluid is a red color. Just a heads up to anybody who is wondering about the maintenance intervals that Ford recommends, I would definitely do them early. I got all of those fluids from rock Auto for about $100. 1 Quote Link to comment Share on other sites More sharing options...
Jetboy47 Posted 13 hours ago Report Share Posted 13 hours ago I found the same on my ST at 20k for the RDU, it definitely needed changing. I bought my Edge used at 18k. I don't have a drain plug for the PTU so I sucked out half the fluid, like you the PTU fluid wasn't bad yet. I also drained 5 quarts of tranny fluid which looked fine. I'm hoping to keep it for the next ten years so I think I might just do the same every 10k as little as it costs. Quote Link to comment Share on other sites More sharing options...
1004ron Posted 12 hours ago Report Share Posted 12 hours ago Doesn't the 2023 ST have a cooler that you pull to drain the PTU? Quote Link to comment Share on other sites More sharing options...
Jetboy47 Posted 12 hours ago Report Share Posted 12 hours ago No, mine does not have a cooler. There is a plug where the cooler would go. I tried finding a spare plug but it's often an unavailable part and it's close to $70 if you can find it. I'm not pulling it without a spare incase there is an issue with it. Quote Link to comment Share on other sites More sharing options...
1004ron Posted 11 hours ago Report Share Posted 11 hours ago Would it only be a gasket that's needed to pull and re-install the dummy cooler plug? Quote Link to comment Share on other sites More sharing options...
boostededge Posted 10 hours ago Report Share Posted 10 hours ago PN: K2GZ-7A010-M from thread - 1 Quote Link to comment Share on other sites More sharing options...
Jetboy47 Posted 10 hours ago Report Share Posted 10 hours ago Yes a seal, but I'm not messing with it without a backup. They say you should replace the bolts too if removed (It's a kit with plug and blots). I'm still under warranty, so no matter what I'm good with pulling half of it every 10k and leave it be. Why they couldn't put a drain plug in it...frigging cost savings. Quote Link to comment Share on other sites More sharing options...
1004ron Posted 7 hours ago Report Share Posted 7 hours ago All that's needed is an O-ring - the size number is found in the thread linked above. No way that the bolts are "one time use". Quote Link to comment Share on other sites More sharing options...
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