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Pavement can reduce MPG by 10%

Old 10-03-2007, 08:50 PM
Thread Starter
Join Date: Mar 2005
Location: Austin, Texas
Posts: 9
Default Pavement can reduce MPG by 10%

I recently drove on a newly repaved highway and immediately noticed a reduction in rolling resistance compared to the rough pavement that is typical in this area:


So I googled "rolling resistance" and came up with this Danish survey which claims that pavement alone can eat up 10% of your fuel economy.


Are those of you who drive on textured pavement getting fuel economy in reasonable ranges?
Old 10-04-2007, 05:51 AM
Active Enthusiast
Join Date: Aug 2007
Posts: 215
Default Re: Pavement can reduce MPG by 10%

Anyone who does a lot of road bicycle riding knows this effect very well. Some surfaces that look OK actually are rough or soft enough to significantly increase the pedaling effort.
Old 10-05-2007, 12:45 PM
Omnia Gloria Fugit
Join Date: May 2007
Location: College Station Texas
Posts: 744
Default Re: Pavement can reduce MPG by 10%

I was beginning to come to this conclusion. I have a stretch that has rough pavement and lose about 3 mpg when traveling on it.
Old 10-05-2007, 02:53 PM
Join Date: Mar 2007
Location: Ohio
Posts: 405
Default Re: Pavement can reduce MPG by 10%

Actually, FRESH blacktop seemed to be rougher than the old pavement they had down. Seems like I lost a few mpg for a few weeks until everyone beat on the fresh (soft/bumpy) blacktop. Now it seems to have lower rolling resistance.
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