Caterpillar MPG anecdotes

Discussion in 'Ask An Owner Operator' started by Josiah Harder, Apr 23, 2023.

  1. ‘Olhand

    ‘Olhand Cantankerous Crusty

    6,693
    16,281
    Jan 18, 2011
    0
    It’s ALL driving habits...
     
    gokiddogo Thanks this.
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. rollin coal

    rollin coal Road Train Member

    13,281
    26,791
    Mar 29, 2008
    TN
    0
    Well I was getting 6.0 in my T600 MBN c15 pulling a dry van and reefer. I get 7.5 in a 2019 Cascadia with a Detroit pulling a reefer. In both trucks I run about 75 mph on the open road and if I'm in an urban area or construction zone do the speed limit. I never idle the Detroit. Idled the CAT as needed. Typically in the winter time the CAT would be closer to 5 mpg and this Detroit closer to 7 mpg. Over the course of the whole year both do a little better than that.

    There's no way in the here and now with expensive fuel that's never going to be much cheaper that I'd buy a truck with a CAT engine to pull a reefer or dry van. Total waste of money blowing out the stacks is all that is. If you are a wonder driver who can manage 6.5 mpg out of a CAT in some sort of barn door truck it's guaranteed you can do 8 in a more efficient unit. This argument has been had in other threads. People want what they want and aren't usually swayed by logic. But logically the CAT is not your ecomical option.
     
    mtoo, Redfish and haycarter Thank this.
  4. Josiah Harder

    Josiah Harder Light Load Member

    120
    73
    Sep 23, 2022
    0
    hopefully would find one already rebuilt. Looks like I can find some around 30-40k but then theres installation costs I guess. But wont an inframe on my current engine cost nearly 40k anyways. And I figure I spend about 4 grand a year on DEF and then I guarantee my EGR cooler is going to fail someday soon and DPF and SCR so I could be well over what it costs to drop in an old engine if I keep the one I have now. Idk its a hard decision
     
    Oxbow Thanks this.
  5. Josiah Harder

    Josiah Harder Light Load Member

    120
    73
    Sep 23, 2022
    0
    Not really looking for optimal fuel economy I already gave up my chances of getting 7.5 mpg when I bought a 389 haha just want something decent and reliable
     
    Vampire and Oxbow Thank this.
  6. ‘Olhand

    ‘Olhand Cantankerous Crusty

    6,693
    16,281
    Jan 18, 2011
    0
    I’ve only driven an aero truck or anything with an emmisons motor a time or two
    But I’m quite sure if I drove a new Crapcadia(which I won’t) I’d get substantially better fuel mileage than my old Pete....
    But I’m either case driving habits will still determine the mileage I get
    As for buying a used pre-emissions motor...IMHO I’d believe anything on market is junk and has to be overhauled
    Too many pre emmision runnin trucks selling for unbelievably Stupid money....for me to believe anyone with a solid pre emmision motor without a home wouldn’t want way too much
    But that’s just conjecture
     
    Vampire, rollin coal, wore out and 2 others Thank this.
  7. jamespmack

    jamespmack Road Train Member

    19,980
    215,674
    Mar 25, 2014
    OH
    0
    Tough call. Idk what the answer is. But I still feel if people ignored oem and ran or tuned these emission Motors to operate at higher rpm, you would see less problems. Oh and change oil early and often.
     
    Oxbow and Josiah Harder Thank this.
  8. ‘Olhand

    ‘Olhand Cantankerous Crusty

    6,693
    16,281
    Jan 18, 2011
    0
    What pre emmision motors are you looking at?
     
  9. Josiah Harder

    Josiah Harder Light Load Member

    120
    73
    Sep 23, 2022
    0
    Was initially only looking for a 6NZ Cat or 3406 Cat but now im hearing good things about the Detroit series 60
     
    Vampire Thanks this.
  10. DUNE-T

    DUNE-T Road Train Member

    6,944
    16,849
    May 10, 2015
    Detroit, MI
    0
    I was just thinking about motor swap, custom brackets, custom harness, all that stuff to make the change. The whole project will cost so much money and time, that I don't think it's worth it.
    Wonder if OP had thought about that
     
    ‘Olhand and Josiah Harder Thank this.
  11. Josiah Harder

    Josiah Harder Light Load Member

    120
    73
    Sep 23, 2022
    0
    All new wiring too, I hadnt really thought too much about all those costs. I would also need to pay shipping costs to have it delivered. Hard for me to estimate all that cus I have no idea how hard it is to swap a motor
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.