No scheduled maintenance on Ford Superduty

way2roll wrote:
It's the same transmission and you are correct there is no scheduled maintenance. That said, I've read that it's recommended you change the transmission fluid around 90k miles.

I have a 2020 F350 6.7 and the transmission is starting to concern me. Aside from shifting very hard in 2 and 3 (it's always done that), the other day it shifted out of drive. I started to pull out of my drive and it just disengaged for about 10 seconds, coasted and then only revved until it banged into gear eventually. Thank goodness I hadn't pulled out onto a busy road. I've also had issues in 4WD. I was towing in some sand a few weeks ago and I put it in 4WD. it started to work fine at first and then wouldn't take fuel at all. It just died when I hit the the throttle. Of course I've had these things investigated at the dealer and they can't ever seem to replicate the issue. We are downsizing to a smaller motorhome and frankly I'll be glad to be rid of the truck. It's nice when it's working but I cringe at potential issues on such an expensive truck. I sleep better knowing it's still covered under warranty but I really worry about long term issues with it. Been lots of reported issues with the new transmissions and in most cases Ford doesn't want to step up.

This 7.3 gas with the 10 speed pulls my 5th wheel as good as my old 2005 Ram 5.9 Cummins. I did not want a new diesel due to all the changes in recent years due to EPA regulations MPG is almost the same, maybe a mile or two less towing but without the trailer it gets about the same mpg.... Just can't understand why no scheduled maintenance!