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Old 11-07-2011, 04:04 PM
art hog art hog is offline
Cruise Moab Committee
 
Join Date: Jul 2006
Location: rollinsville Co
Posts: 405
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My 4BT in my 55 gets about 24-mpg driving from Rollinsville to Boulder on average. On the hwy it is closer to 30-mpg. I have plenty of power. You will not get that kind of mileage with a 4sp. You need an overdrive. I have a NV4500. You will also need to do a spring over and switch to FJ60 axles or mod the oil pan. There is a 3.3 cummins that is very nice but $$$$$$. Also from what I understand to run biofuels, ie: veggie oil you will need an aluminum fuel tank. Steel creates a scale on the inside of the tank and flakes off and messes everything up. So I have been told. I would go with the 300-td.
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