Quote:
Originally Posted by Davidg
I'm on my second 6.7. Stanley, you are absolutely correct about 4 wheel drive. I'm towing approx 13,000 and get 10-11 towing, 15-16 around town, and 20-21 interstate. I topped off today, and hand calculated at 15.9 around town. But dang does that sucker pull strong.
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No way your getting 20-21mpg,I dont get that and I have no dpf or cat.but i do have a cai and tune put in it,6.4 2008.