2025 3500 cummins zf8 oil leak

[woodrow]

I found this oil residue under my 25 ram cummins when changing my oil. It has 8k miles on it, has anyone else had this issue

 

[Cseybert]

It’s not trans oil it’s the protective coating that they put on the flywheel. It gets hot and melts off. Use some brake cleaner it will subside in time.

 

[Rowdy Dalton]

Wipe it off, and keep an eye on it. None of my vehicles ever did that. But, not to throw you into a paranoid episode, I have seen leaky rear main seals do that, as well as leaky transmissions. Use a white paper towel, wipe the fluid up, give it a look and a sniff, to see is it is engine oil or transmission fluid.

 

[Units]

I found this oil residue under my 25 ram cummins when changing my oil. It has 8k miles on it, has anyone else had this issue

Nothing to worry about

 

[woodrow]

Nothing to worry about
View attachment 91868

Thank you for the help. I sent the picture to service manager and he didnt mention the above. Shows how much they know. He wants me to take it in for them to look at it and said its not normal. I will show him this bulletin

 

[slideandride]

I had the same thing today.
It was green oily fluid on the floor.
25 Dually with ZF and 10000 miles.
Are we sure it's this CATS thing that's described above?