I found by accident a bulletin by Cummins about changing to ULSD from LSD fuel causing lift pumps to leak. No equipment damage is caused other than the leak(s), but it is something to think about.

The number is E05033. I do not know if it pretains to the Dodge engines.

 

Yeap, makes sense that it may cause leaks because it is like biodiesel. It has some solvent type properties. I only would suspect it on trucks with a descent amount of miles on them.

 

Have alook at the diesel pumps that have not been seviced yet that are dispesing ULSD, most of them are leaking like a sieve!
If the seals are not compatible - they will begin to leak.