Gas engines in class c or b

I think with the newer Ford or Chevy engines in a class B or C if maintained will go well over 100k miles. Your RV will probably fall apart before the drive train.

I have not heard of any issues with the gas versions. I guess people just trade up or down depending on what works for them. U can tow with some of these so you will need to look at the tow rating if u intend to pull a small utility or motorcycle trailer behind. I know someone that had a Mercedes version and it was crazy expensive when things needed service, but that was for the Diesel engine.

Answering in your other post.

There are many class C’s based on the Sprinter chassis using a Diesel engine. As far as gas engines most newer ones can go and go and go.

This is not a 'tow vehicle', and double posting is frowned upon.