Forum Discussion
Hannibal
May 25, 2019Explorer
Hitch Itch wrote:
I bought my first 2018 duramax, always pulled our 13k 5er with a 6.0 gasser, no real issues other then it was always at about 3k rpm now with the duramax its always around 1800-2000rpm. I am Very dissapointed in the mpg tho, the gasser would always get 7mpg and the duramax only gets 9 mpg, I was expecting far more then a 2 mpg gain for the additional $10k I spent
That was my experience as well with my four Cummins powered 2500 Rams and then going to a 5.7L Hemi powered 2500HD Ram rowing the same 5th wheel. 30% higher rpm and 2 mpg less with the Hemi. Where the diesel did much better was around town on my service route. The Cummins Rams gave 18.5~mpg where the Hemi Ram gave 12-14~mpg.
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