Wagoneer Fuel Mileage

Dec 23, 2009 21 Replies

I'll do that--e.g., join the Yahoo FSJ Group.

I am methodically going through and addressing the usual suspects, ignition, fuel, exhaust, etc. I have no alignment or running gear problems, thankfully. I have a new carb, but one that was not tuned precisely, so working on that. There is an exhaust leak at the front bracket of the muffler, which may contribute. I'm going to replace the bracket and muffler today. I've done the compression check and that was satisfactory; the Jeep has plenty of power and compression.

Beyond that, I will be happy with whatever I am able to get, hopefully

10-15 mpg. I'm going to occasionally pull a 19' Airstream travel trailer, which will probably cut into the mileage some .

I'll do that--e.g., join the Yahoo FSJ Group.

I am methodically going through and addressing the usual suspects, ignition, fuel, exhaust, etc. I have no alignment or running gear problems, thankfully. I have a new carb, but one that was not tuned precisely, so working on that. There is an exhaust leak at the front bracket of the muffler, which may contribute. I'm going to replace the bracket and muffler today. I've done the compression check and that was satisfactory; the Jeep has plenty of power and compression.

Beyond that, I will be happy with whatever I am able to get, hopefully

10-15 mpg. I'm going to occasionally pull a 19' Airstream travel trailer, which will probably cut into the mileage some .

--- --- --- --- You need to look at the axle ratio too. I remember in the seventies when manufacturers went wild with too-low axle ratios, and it had the opposite effect of what they were trying to accomplish. That engine (every engine, as a matter of fact) is designed to operate within a fairly narrow rpm range for maximum efficiency. I think if you retrofit a Selec-Trac transfer case and the same gears as your previous Wagoneer, you will get the same fuel economy that you are used to. Otherwise, you won't.

Earle

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