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Old 01-19-2011, 01:30 AM   #22 (permalink)
nimblemotors
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Quote:
Originally Posted by Ratrod View Post
I deliver mail with my Jeep and notice to just sucks the fuel down. It has a 4.0 six cylinder and automatic with 3.73 gears. I am running running 225/75/15 tires and plan to use 215's. I have changed the spark plugs, air filter and use synthetic oil. Any suggestions are appreciated.
The aero of this vehicle is probably pretty bad, sits up high, big tires, no flow. But do you spend time on the highway, or is it mostly stop-n-go rural box hopping? Is the 4WD really needed? that adds weight.

Is it performing similiar to the published MPG figures, or much worse?

Is another vehicle an option? Would be lots of choices depending on the above answers.
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