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Message: [QUOTE="INFRNL, post: 611587, member: 9835"] +1 to this, winter fuel kills our mileage What are you talking about, these trucks actually do very well. What do you want from a truck? You may want to check your ebps/tube, ipr, icp, cps, boost leaks, etc. There are many variables that can cause poorer fuel mileage. I did not pay attention to what your truck is exactly. Last summer, I got 14ish city and 17-18 hwy in my F350 crewcab, lwb, 4x4 dually, auto with 4:10 gears. If it was a standard, srw w/3:73's; it would get quite a bit better. Thats pretty good for a huge heavy truck imo. There are others getting better than I am too. You need to start going through your truck and check things out. I lost mileage about a yr ago; changed ICP, IPR, cps and gained mileage back. Sometimes the ebps and tube get really dirty causing a loss in mileage. [/QUOTE]

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