This is my trip up north, up and down hills. I know there must be some really good ones out there but, I didn't try very hard and was moving pretty good for Ontario roads.
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Loaded Laramie air suspension and 355 rear end 20s tires.Fantastic mileage Wes Mgc, I'm all highway, and with a soft foot havent got better than 8.9l/100km. Sorry if I missed it, what options on your truck?