My biggest issue with the 6.7 is the high pressure fuel system. If you aren't careful with fuel quality and maintenance it can get very expensive.
Isn’t that the case for all of the “Big 3”?
I thought one of them still used the CP3 instead of the CP4, but honestly don't keep up with the new ones. My next one will likely be a gasser.
Unfortunately for 2019 Cummins is using the CP4, and the failure rate has spiked. GM apparently ditched the CP4 in favor of a Denso pump because of the high failure rate. The CP3 is no longer.
however , if you buy a 2018 Cummins or older , you still get the CP3 pump and its much better track record
which makes it my choice if I needed a late model diesel at this time.........
