Bumpers and MPG - JeepForum.com
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post #1 of 3 Old 09-03-2013, 02:36 PM Thread Starter
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2006 TJ Wrangler 
Join Date: Jul 2007
Location: Texas and Colorado
Posts: 71
Bumpers and MPG

I have heard that switching from a full width bumper to a mid or stubby (on a JK/JKU) can drastically decrease your MPGs. Not because of increased weight, but due to extra wind drag on the face of the tires and the fenders. Has anybody else heard this or have experience with this? If so, how big of a drop did you experience? Thanks.

SilverRubi06 is offline  
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post #2 of 3 Old 09-11-2013, 09:17 AM
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2004 KJ Liberty 
Join Date: Aug 2008
Location: Central OH/ Kilimanjaro,Tanzania
Posts: 5,954
I have heard the same things over the years but never noticed any "real" difference . If any its a very small amount, for me at least.
I recently went from a ARB which had been on mine since 2005, sold it and mounted up this brush guard to build my own bumper off of. I'm actually getting better mileage now
before and after shots
when I started pulling the old one off so you can see the differences

04 KJ JBA 4 IN COILOVER, 32s 4.10s
03 KJ JBA 2.5 T.C. LIFT, 31s 4.10s
05 KJ
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post #3 of 3 Old 09-15-2013, 12:50 PM Thread Starter
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2006 TJ Wrangler 
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Location: Texas and Colorado
Posts: 71
Thank you for your reply!
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