Quote:
Originally Posted by Ratrod
I havent found any lockout hubs. The scan gauge is the biggest help with fuel economy. I also put alloy wheels on. I coast to a stop as much as I can. I recently had the transmission serviced and a moddifier was used for the hard use it gets. I am looking into springs to lower it a couple of inches and thinking about 205/75/15 tires also.
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A mail route and the jeep, you are probably doing all slow moving and accelerating. Do you drive highway to your delivery location? Is it hilly? I haven't found a way to kill off fuel consumption for this. I'm in a simliar, yet slightly better spot with my Subaru. Acceleration just eats the FE.
Light weight is going to be best option if your creeping along, but honestly that 4.0 straight six is a dinosaur in terms of engines and theres not much to do for better FE. Reducing tire weight will help some. And possibly changing out to different gears, but that will effect the speedometer.
I've been curious about getting a lightweight pulley for my subaru, perhaps this would work for the jeep as well. Not sure if there are lightweight pulleys for a Jeep, or if they are harmonic balancers.