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Old 06-12-2012, 06:21 PM   #1
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Does Wax Really Help MPG???

OK, with as much time as I spend here I should know this, but.....

I've read many references made by members that keeping their coach waxed improves MPG. The problem is, every now and then some of our members are prone to offer "tongue in cheek advice" and I don't know whether or not to believe what I've read.

So... what say ye all. Does a good wax job have any impact on the MPG of a DP?

Thanks

Rick
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Old 06-12-2012, 06:24 PM   #2
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While I suspect that tests could be run in a wind tunnel to measure the effect of a good wax job, I can't believe for a second that any increase in wind resistance or mpg would be measureable.
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Old 06-12-2012, 06:30 PM   #3
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Not nearly as much as a " light foot "
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Old 06-12-2012, 06:32 PM   #4
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Old 06-12-2012, 06:36 PM   #5
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I don't know the answer but I am betting all the prior answers are good ones. I know that a light foot and keeping the speed down works.
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Old 06-12-2012, 06:46 PM   #6
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Thanks guys. I suspected as much. I've got the part about a light foot.

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Old 06-12-2012, 06:47 PM   #7
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Depends on the brand of wax, but improves it by at least 3 MPG...
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Old 06-12-2012, 06:49 PM   #8
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The brand I use is good for 3.5 mpg on a DP
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Old 06-12-2012, 06:50 PM   #9
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I look at it this way, it sure won't hurt, and since you are going to wax to preserve the finish anyway? Just think about all the money and research they do for the swimmers and bikers try to cut down the wind resistance on the apparel they wear. The Olympic speed skaters do the same thing. Less resistance, less power or energy needed to move. That should equate to better gas mileage, but maybe not enough to notice. 1 or 2 tenths per gallon?
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Old 06-12-2012, 06:50 PM   #10
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Funny, my neighbor came over while I was waxing ours, and told me he did a survey of I think they were busses he was incharge of. He claims there was a slight improvement in fuel consuption of the fleet. He said he monitored before waxing the the same after waxing. I just nodded and kept waxing. I do know he did many tests for efficincy, so maybe it does help? I do know when I ask someone with a simular unit about MPG the answers have been 6 to 7.5. So maybe the one that gets 7.5 mpg uses a slicker wax cause I am a pretty steady 7mpg!!
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Old 06-12-2012, 07:07 PM   #11
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Probably once you get to 100 mph it'll make a difference.
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Old 06-12-2012, 07:13 PM   #12
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I do not see how-we are still pushing a barn down the highway
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Old 06-12-2012, 07:21 PM   #13
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So, what's the best wax, spray/hard?
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Old 06-12-2012, 07:21 PM   #14
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Quote:
Originally Posted by 87Rockwood View Post
I do not see how-we are still pushing a barn down the highway
Amen
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