| I haven't pulled any loads yet (plan on pulling the wife's SUV through the mountains when I move to Washington next month @ 5000 ibs.), the truck has only 650 miles on it. On the first two tanks I was averaging a hair under 16 mpg, and most of its city driving. Just food for thought...my dad who is a retired truck driver said that if the Duramax is tuned slightly wrong it can cause bad gas mileage. I thought he was smokin crack, but maybe there is something to it, never know.
__________________
'06 2500HD Duramax LBZ LT3 4x4 Graystone Metallic |