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Old 04-14-2014, 08:37 PM   #1
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Mpg

When the top and doors are off is the jeep less fuel efficient?

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Old 04-14-2014, 09:31 PM   #2
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Never even thought about it , I just love driving it

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Old 04-15-2014, 01:22 AM   #3
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Technically, yes. There is more parasitic drag.
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Old 04-15-2014, 01:39 AM   #4
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yes if you study aerodynamics you will see that these bricks can be made even less slippery. The faster you go the worse it would get. around town probably no big deal and if driving slow maybe get better because of less weight but as speeds pick up so does turbulence.
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Old 04-15-2014, 01:40 AM   #5
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With my TJ I swear I get better milage with the top up, front windows down, side windows in, and rear window out.
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Old 04-15-2014, 08:52 PM   #6
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Better mpg with the top up, less heads turn though...
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Old 04-16-2014, 12:08 AM   #7
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If you're worried about mpg with the top down, you have the wrong vehicle.
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Old 04-16-2014, 08:57 AM   #8
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Quote:
Originally Posted by 2five22 View Post
Technically, yes. There is more parasitic drag.
Some of which can be removed if you drop the windshield also.
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Old 04-17-2014, 11:48 PM   #9
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Originally Posted by Lukeellis View Post
When the top and doors are off is the jeep less fuel efficient?
Spock would say, "you get exactly 0.543526 less mpg". Don't ask me how he knows.
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Old 04-18-2014, 12:48 AM   #10
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Spock would say, "you get exactly 0.543526 less mpg". Don't ask me how he knows.
No, I'd say you get around 10mpg with the top and doors off.
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Old 04-18-2014, 10:46 AM   #11
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good, I get better milage with the top up, front windows down, side windows in, and rear window out.

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