isx mileage

Discussion in 'Volvo Forum' started by waltherz, Apr 11, 2019.

  1. waltherz

    waltherz Light Load Member

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    Dec 12, 2012
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    I would like know what is the mileage per galon for a volvo 2010 with cummins 450 with 13 speed. This truck loaded is doing 5 to 5.5, I think is poor mileage. Thanks for any opinion.
     
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  3. Dave_in_AZ

    Dave_in_AZ Road Train Member

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    How fast are you cruising, what part of the country? How much idling? I had a 670 that I could only squeeze about 6 or 6.2 out of. Cascadia's are good for 1 mpg more.
     
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  4. Newto Trucking

    Newto Trucking Medium Load Member

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    Dec 26, 2013
    NE Illinois
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    Does your truck still has dpf and maybe def system??? Beginning of April most truck stops switch over to summer blend diesel, you might be getting better fuel mileage soooon.
     
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  5. Brettj3876

    Brettj3876 Road Train Member

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    Land of local
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    What rears and cruising rpm are you at? If your doing 70-75 you aren't gonna break out of the 5's
     
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  6. waltherz

    waltherz Light Load Member

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    12
    Dec 12, 2012
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    Thanks your opinions, the truck is running northeast to TX and midwest, I would like know an average in round trip , not at specific area, because the truck mountain and plain areas. Thanks again.
     
  7. KB3MMX

    KB3MMX Road Train Member

    3,057
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    Dec 29, 2014
    Orrstown, PA
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    If 3.25-3.58 rears...
    Speed low 60s and driven for MPG , low to mid 7s , with an APU no idling.

    Driven like a hammer head and idled regularly... 5-5.5 is about tops... Maybe less



    OP .... What rears ??

    What cruise speed ??


    .
     
  8. just_sayin

    just_sayin Light Load Member

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    Sep 2, 2012
    Bristol baby
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    2009 ISX. Emissions delete. set at 550 horsepower..Borg Warner Turbo. full tilt manifold.386 Peterbilt ,13 speed 3:55 gears. Lowepro 22-5 rubber. I run from Virginia to Phoenix twice a month. 20 to 25 thousand in the Box. Cruise speed 65.. RPMs 1430. Idle less than 15%. Anywhere from 7.5 to 8.2
     
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  9. waltherz

    waltherz Light Load Member

    129
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    Dec 12, 2012
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    Did you raise up to 550?my truck has 450 and reggens system. Thinking in emission delete and raise up to 500 hp. I had 1 driver and he did 4.7 mpg, the current driver improve to 5.5 pmg.
     
  10. just_sayin

    just_sayin Light Load Member

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    Sep 2, 2012
    Bristol baby
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    Yeah I had it reprogrammed to 550. All the emissions garbage is gone it's not even on the motor anymore. I think of a lot of the reason I get that mileage is I run it real easy. If I ran 70 75 I doubt I would get 6 miles to the gallon. And I forgot I pull a dry box with no skirts
     
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  11. KB3MMX

    KB3MMX Road Train Member

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    Sounds like a big part is the drivers.

    Lock that thing down and you'll see it improve ...
     
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