Gm 2500HD GAS VS DIESEL

ib516 wrote:
Towing 16,000#
Gas 6.9mpg, diesel 10mpg
116,000 miles needed towing to pay off the diesel upgrade

Empty
Gas 16mpg, diesel 19.9mpg
650,000 miles needed to pay off the diesel

Video

You know how many miles it would take to to pay off the upgrade from your old 6.4L from the 5.7L version of the 2500? Never, because it not only cost more up front for the added 27 hp and 29 lb-ft of the 6.4L, but the running cost is higher so the added cost increases the longer you own it. So even if you trade it in and recoup most of your up front cost, it will cost a few thousand more.

This is why the Cummins actually costs less for most than the 6.4L, but more than 5.7L when all things are considered like resale/trade-in.