I am curious what hiway and city milage you guys are getting on you 2003-2004 3500 4x4 trucks. Right now i seem to get about 14 in town and 15-17 on the highway. Its prettty much stock except for a BHAF. Has 3.73 grears
03 average is 19-20 highway 15 in town. I live in a 10.500 size town 6 stop lights In the town I only go throw 4 of them the most of the time.When pulling on interstate at 60 with 23.000lb I run 15.2 down to 14.2 she is stock except for air defector for the fifth wheel I put an extra air in let in the bottom of the stock box and ran a flex hose behind the front bumper with a screen boor screen on the end run the stock air filter that came with the truck. DO NOT run in deep water or snow.
with 35's 4.10 gears and the mods in my sig, im gettin 20-21 highway runnin 70-75. city i dont know cause i might drive 2% of total miles. i do know that 1800 rpms seems to get the best fuel mileage in my truck at least
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