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What fuel mileage can one expect from a 2008 Prostar ?

Discussion in 'International Forum' started by jameson1985, Oct 7, 2014.

Page 2 of 2
  1. Oct 9, 2014 #11
    jameson1985

    jameson1985 Bobtail Member

    28
    1
    Oct 4, 2014
    0
    Im getting a tune up and the roof fairing installed so that should help a lot.... i'll post the results when the truck comes back from the first trip
     
    jameson1985, Oct 9, 2014
    jameson1985, Oct 9, 2014
    #11
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  3. Oct 10, 2014 #12
    double yellow

    double yellow Road Train Member

    5,946
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    Aug 28, 2011
    State of Jefferson
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    5mpg at 65mph is excessive, even with no fairings or skirts. Start with the engine & emissions system.

    With a reefer or dry van, a roof fairing is going to save you 5% in mpg. Side skirts (on the tractor) will save you about 1%. Trailer skirts will save you about 5%. Being that you haul light loads, you may consider converting your tractor from 3 axles to 2 (~7% mpg improvement).

    Even if you did all of the modifications, you'd only be looking at going from 5.0 to 5.9mpg compared to what should be well over 7mpg with that weight/lane. So you've got some engine/emissions stuff going on...
     
    double yellow, Oct 10, 2014
    double yellow, Oct 10, 2014
    #12
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