Forum Discussion

Groover's avatar
Groover
Explorer II
Oct 20, 2018

A new gas engine for GM heavy duty trucks is coming

A new 6.6L engine with 400hp and 450lbft of torque is coming for 3/4 ton through medium duty GM trucks. It will have all of the new fuel saving tech and seems to emphasize torque over horsepower. It...
Tow Vehicles
mtofell1's avatar
mtofell1
Explorer
Oct 21, 2018
Great news for all.... options, options, options. The amazing part is the MPGs these newer gassers churn out. I get 8-10 hauling an 11K 5th wheel with my 6.4 Hemi. That was considered a good day with a tailwind and no 5th wheel in a pre-fuel injection gasser.

As much as I'm excited for the HP/Torque specs I'm anxious to see what kind of MPGs the next generation will churn out.

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