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Diesel MPG

Discussion in 'Trucks and Trailers' started by TheChiefsLawnCare, Aug 23, 2012.

  1. TheChiefsLawnCare

    TheChiefsLawnCare LawnSite Senior Member
    Messages: 960

    Im considering getting a ford f250 or f350 to pull a fully loaded 7x16 enclosed tandem axel trailer. Right now I have a 07 GMC sierra 1500 with the flex fuel engine and the gas mileage is killing me. Do yall think I will get that much better mpg with the diesel. If I had to guess i would say im proab getting between 7-10 mpg with the sierra. I would also like the heavier truck for the bigger payload.
  2. BPS##

    BPS## LawnSite Senior Member
    from WY
    Messages: 828

    I pull a heavy trailer with 4' expanded metal sides and 5' expanded metal ramp.

    Every one knows that expanded metal pulls hard thru the wind.

    Driving a 2000 F250 7.3L diesel with 4x4 and 6 spd manual trans.
    I rarely drive over 65 and get 12.8/9 fairly consistently.
    Just the truck with no trailer keeping it under 70, 18.5 is totally doable.
  3. TheChiefsLawnCare

    TheChiefsLawnCare LawnSite Senior Member
    Messages: 960

    better than what im doing when im not pulling any trailer. when that truck when my everyday, before i got my work vehicle, i was getting about 13 mpg. new gas trucks get horrible mpg. my dad got an 08 f250 diesel with camper top and city driving i think he said he was getting 11-12. and he drives slow and dosent let into it. so you still doin better then the new diesels, and you have a much better sounding truck lol
  4. 01thump

    01thump LawnSite Member
    from orlando
    Messages: 200

    Diesels will always get better mpg compared to a gas motor TOWING and will tow better power wise and will last longer if taken care of..they are a work motor thats what they are designed for.
  5. ParkWelding

    ParkWelding LawnSite Member
    Messages: 182

    Yes, you will. But know that not all diesel trucks get great fuel mileage in stock form. Use the search function.
  6. BPS##

    BPS## LawnSite Senior Member
    from WY
    Messages: 828

    Low mileage 7.3Ls can be found but you can't be in a rush to buy one.
    Its one of those start looking things and be ready to jump fast when you do find one. They don't last.

    There are a lot in the 200k to 300k miles range.
    Those guys seem to think their trucks are worth twice what they are too.
  7. hosejockey2002

    hosejockey2002 LawnSite Bronze Member
    Messages: 1,195

    The older diesel trucks get better mpg than the newer ones. The old 12 valve Cummins diesels are really good on fuel but don't have the pulling power of the newer ones. The newer diesels will still get better mileage than your current truck and of course pull much better.
  8. Tizzy

    Tizzy LawnSite Senior Member
    Messages: 383

    ive got an 08 f250 ext cab long bed. its gets about 14 mpg towing the mowing trailer. and empty does 17-21 mpg.

    honestly. with it you need to be towing over 12K lbs to really ever know its there. it has so much power.
  9. ParkWelding

    ParkWelding LawnSite Member
    Messages: 182

    Is that truck completely stock? I haven't heard of much more than 14MPG from a stock 6.4
  10. TheChiefsLawnCare

    TheChiefsLawnCare LawnSite Senior Member
    Messages: 960

    yeah. i hate gettin no mpg. but then you also gotta look at the fact that im saving 20 cents or so per gallon so how much are you saving in the long run. not to mention the extra cost of an oil and maintenance in general for a bigger truck.

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