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Would new front/rear bumper affect gas mileage?

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Old 03-17-2008, 03:52 PM
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Default Would new front/rear bumper affect gas mileage?

I want to get a new front and rear, but with gas headed up, I don't want to do it if it really affects the gas mileage. Any one know what the hit to MPG is?
Old 03-17-2008, 03:53 PM
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Probably nothing unless you get some bumpers that weigh a ton.
Old 03-17-2008, 04:06 PM
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Originally Posted by artieandgumbo
I want to get a new front and rear, but with gas headed up, I don't want to do it if it really affects the gas mileage. Any one know what the hit to MPG is?
I am going to give you the answer I see alot on here, and what was givin to me, when I made a thread about mpg. You drive a jeep, they dont get good mpg, if you want to get good mpg, go buy a toyota camry.

No. but in all honesty, unless it weighs a ton, you should be fine.
Old 03-17-2008, 04:21 PM
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Originally Posted by Asta4125
...go buy a toyota camry.
I'd buy a Jeep Patriot if I wanted better MPG. Brand loyalty. I don't do Toyota.
Old 03-17-2008, 04:32 PM
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Originally Posted by putnam dan
short answer yes it will
There are bumpers on the market (Expedition One for one) that weigh 25 pounds. That ain't gonna make a difference.
Old 03-17-2008, 05:28 PM
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If the bumper weighs more, of course it's gong to effect MPG. The more it weighs, the more it will effect. In addition to that, once installed, if you've removed the plastic piece under the bumper, that will also effect MPG.
I'm not saying by adding 30lbs up front the change will be drastic, but, any increase in weight will effect gas used to propell the vehicle. It's just physics.
That's why NASCAR drivers try to shed weight, yet still get their car to be as arodynamic as possible, and try to have the vehicle exert downard pressure on the rear so the tires will have better traction.
Old 03-17-2008, 05:30 PM
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Originally Posted by 2k2wranglerx
if you're worried aobut the aerodynamics, just put the plastic thing back on.
Actually, that's the key point, from what I've heard and experienced. I didn't do this myself, but I've heard many stories about people that took the air dam off the front with the stock bumper on and lost several miles per gallon from that alone.
Most of the people that went with a bumper with a bit of a skid on the front, myself included, didn't see a mileage drop, but it may be a different story for those with no skid and no air dam. I can't say for sure.
For what it's worth, I see nothing wrong with asking the question. Sure, it's a Jeep and they aren't known for their MPG, but I wanted to know the same thing too. Nothing wrong with curiosity.
Old 03-17-2008, 05:35 PM
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the weight will make a difference. if you have a 140 pound front bumper - which i think the fab four is. and a rear bumper over 100 pounds and a winch which can weight about 100... thats over 300 pounds added to your jeep. I can feel the difference if one or two or three people are in my jeep. it defeniatly affects performance and mpg. or L/100km here in canada lol
Old 03-17-2008, 05:43 PM
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use cardboard bumpers and you might get better mileage, just a thought
Old 03-17-2008, 06:12 PM
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Originally Posted by smack2020
use cardboard bumpers and you might get better mileage, just a thought
The stock bumpers ain't much better than cardboard.


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