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worst fuel milage with an open flat than rolling tarp why?

I traded my flat with the rolling tarp into a brand new open flat, since then i am lossing a full mile per gallon why? the new flat is 2000# lighter, i have a lift axle (less rolling risestance) but yet i am getting worst fuel milage, is this crazy or what? not to mintion that i am doing the extra work of tarping and lossing money.

Answer this question I have this problem too

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When I moved from a 53' refer van to a Conestoga or Curtain van my MPG dropped a full mile.

The difference with the flatbed might be the type of freight you are pulling, tarps or no tarps, etc. As mentioned before, the aerodynamics off the cab are also likely a factor

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My bet is on the tires and wheel bearings. I went from a new alluminium fontaine (8% better fuel economy per manufacturer) to an old all steel step deck with a solid plate behind the drives (also 5000lbs heavier)...and my mpg got better. The difference is that the flat tires had 136rr and the step ones are around 80.

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btw still have the engine miss?

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With the rolling tarp system the wind was deflected the same all the time like it would be on a van with a open flatbed your subject to the load your carrying at the time for wind deflection which I feel is going to be worst.

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Jerzy got it right. Did you buy this truck uesd or did you have it built for you. Most truck are setup for van. So it would get better MPG with a rolltarp setup.

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I get bad fuel mileage pulling a Conestoga, I have a mid-roof so the direct impact of the wind hitting the bulkhead of the trailer drives it down for me.

With a flat, same principal applies, taller the load, worse it is or if there's an object on the rear that's taller than the part of the load in front of it the worse it is.

If I have an A/C unit on, I load it as far forward as I can and slide my 5th wheel ahead as far as I can to eliminate the gap.

Not every trailer pulls the same, might be worth jacking it up and just see how much effort it takes to turn the tires in the air. Maybe there's one hub that's noticeably not rolling as well?

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i got confused as $&*$..and the realized there's two members with the same nick. i thought "Your" was answering their own question. LOL

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I've seen that on several different posts, it is confusing. I'm not sure there are only two "Your" users, might be more. LOL.

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Well, I just started with this. It assigned me that nickname and I follow the instructions to change it, but it won't let me. Might be a glitch because I'm logging in through MyGauges and not through LetsTruck? I'd love to be able to change it.

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Nabil1127 will be eternally grateful.
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