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2015=20 to 28MPG, 6.7L, G56-6Speed 9000lb quad 4x4 & camper Shell
I have a G56 and 3:42 ( highway gears ).15-16 is average around town. 16-20 highway, hand calculated actual mileage. No way you are getting over 24 on a stock truck... If you are I wouldn't change a thing. And like SilverSurfer15 stated Viper runs a very different trans. Yours is much heavier...- foxfury
- Post #7
- Forum: Heavy Duty
