I agree with your thoughts about the durability of the Jeep 4.0 I-6, I just love that engine! I had a '92 Cherokee 4x4 with the 4.0+auto and it was fantastic. I had 30" tires but could still manage 20 mpg at about 55, but on the interstate at 70 it was down to about 17. I'm currently looking for either an Explorer or Cherokee but I want a 2x4 and manual transmission. One of the main things I notice is the aftermarket support for the Ford that the Jeep just doesn't have(concerning the engine). You can't get pulleys or computer flashes for the Jeep 4.0, which seems to be a pretty big deal concerning mileage.
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Thats the only surefire way I have efer seen on my quest to discover the best way to save gas...There is a way to achieve alot better mileage. It involves re-routing your fuel line through the exhaust to get it hot. This system has bumped cars up 10-15 MPG's before. I once saw an old Fiero that was getting 25 hwy before this job and afer it was doing 38 hwy with a noticeable increase in power. The way it works is it heats up thegas so that it burns more efficiently and therefor burns less. Just dont try this with a car that you have a warranty on. I hear this can be dangerous too if youre not careful so...anyway
There is a way to achieve alot better mileage. It involves re-routing your fuel line through the exhaust to get it hot. This system has bumped cars up 10-15 MPG's before. I once saw an old Fiero that was getting 25 hwy before this job and afer it was doing 38 hwy with a noticeable increase in power. The way it works is it heats up thegas so that it burns more efficiently and therefor burns less. Just dont try this with a car that you have a warranty on. I hear this can be dangerous too if youre not careful so...anyway
