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Gas Mileage



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Old 02-03-2006, 08:14 PM   #1
 
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Gas Mileage

I just got a '02 Jeep Wrangler and I've been buying things left and right so far, but the only things I have purchased as of yet that will help my mileage at all is an Airaid cool air intake and a poweraide throttle body spacer. I'm going to get some exhaust later, and maybe even a programmer and try and save myself a few bucks at the pumps. But I'm posting to get other suggestions on fuel savers that are somewhat economical, I'm very poor right now, haha.
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Old 02-03-2006, 08:48 PM   #2
 
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Kinda hard to make a big brick get good gas mileage
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Old 02-03-2006, 10:14 PM   #3
 
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Intake will help, tb spacer is crap. Do the exhaust ( cat back) programmer is real iffy. areodynamics are overated Oh Keep your foot out of it. you cannot get "good" gas milage out of a Jeep. you just have to find out what you can live with.
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Old 02-04-2006, 07:39 AM   #4
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hmmmm.....the spacers that I have used have shown a difference...and I would do the entire exhaust......USUALLY...the exhaust manifold is one of the most restrictive parts of the system....USUALLY.......


Hatch is correct....I would have to say the only vehicle with a higher Cd would be a Hummer.......

MPG and performance both improve from the same modifications, for the most part........what you want is to increase your Volumetric Efficiency.....get as much air in and out with the smallest amount of fuel....you know 12.5:1.....(simply explained of course)

In my actual experience I have found that by adding a freeflowing air intake (airraid, K$N FIPK, PVC & hoseclamps, whatever) and a freeflowing straight through muffler you can actually pick up 2-3 mpg.

Now mind you this is on a 4 cylinder automatic 2wd........
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Old 02-04-2006, 07:48 PM   #5
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I had a 2001 Jeep Wrangler and the best I ever got on the hwy was 19 mpg. Most of the time I avg. 17 mpg and this Jeep was stock.



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Old 02-27-2006, 01:54 PM   #6
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Originally Posted by Bruiser
I had a 2001 Jeep Wrangler and the best I ever got on the hwy was 19 mpg. Most of the time I avg. 17 mpg and this Jeep was stock.
wow! i have a 2000 wrangler and when it was stock i would get about 19mpg and higher with mixed highway and city driving
now that its on 33's and higher i get about 16-17 mpg at least in the city and its a sport with the inline 6 and no engine modifications or gearing changes, it does have the k&n drop in filter but not the big cone one
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Old 02-27-2006, 08:14 PM   #7
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