Bad fuel mileage in cold weather?

Discussion in 'Experienced Truckers' Advice' started by PermanentTourist, Feb 13, 2020.

  1. PermanentTourist

    PermanentTourist Heavy Load Member

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    Anyone else notice that? I can never seem to get anything better than 6 miles per gallon when it's below zero, even when it's not really windy. Then a week later down in Florida I'm getting 8.7. And when it goes cold and windy, ooh boy... right now I'm making my way across Iowa, heavy, -6 and 20mph sidewind, and I'm going broke at 4 mpg.

    Anyone else notice the cold weather bad mileage? And if so, any idea why?
     
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  3. DUNE-T

    DUNE-T Road Train Member

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    Yep, even just idling in cold weather my truck uses fuel like crazy
     
  4. PermanentTourist

    PermanentTourist Heavy Load Member

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    I'm not even talking about idling. This is raw highway mileage, after a fill up.
     
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  5. jammer910Z

    jammer910Z Road Train Member

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    Winter blend fuel to keep from gelling in the northern states.
    Lose at least 10% off the top.

    Dense cold air is hard to cut through and the truck doesn't breathe quite as well.

    You idle more.
    It's a lot windier. Always a headwind or a crosswind.

    When you're in the southern states, they don't have that blended fuel. Your mileage will be back up.

    We all deal with it.
     
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  6. PermanentTourist

    PermanentTourist Heavy Load Member

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    Yeah, good point. I didn't know anti gel fuel makes you get worse mileage. It probably doesn't help that I dumped an entire bottle of antigel into already pre-treated TA fuel...
     
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  7. PermanentTourist

    PermanentTourist Heavy Load Member

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    And what a good point about always headwind or crosswind. What's with that, lol? Statistically shouldn't it be tailwind once in awhile... But it never is.
     
  8. baha

    baha Road Train Member

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    The pre/blended fuel you buy at large T/stops is blended for the temps at the part of usa their selling fuel at and will allways give truck lower fuel mi. but it will keep it running without gelling up at most times, I kept a few cans of anti/gell and some 911 fuel anti gell for times when you had to shut off truck while loading for many hours at a time?
     
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  9. PermanentTourist

    PermanentTourist Heavy Load Member

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    Yeah, TA told me their fuel is rated for 10f, forecast said 0, so I dumped some extra anti-gel to be sure. Half of the whole parking lot at Wolcott Petro was having a hard time starting because it was in the thirties in the evening when they went to sleep. And everyone's brakes were stuck.
     
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  10. CK73

    CK73 Medium Load Member

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    Probably best to park on a level surface and only engage the tractor (yellow) brake when it's under 20f. Found this out the hard way in the middle of nowhere, Mcdermit, NV. Nice grocery store and casino, though. Took all day to get help from Jordan Valley.
     
  11. PermanentTourist

    PermanentTourist Heavy Load Member

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    Just get under there and hit the brakes with that hammer, no needs to get help.
     
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