DIC MPG reading

Discussion in 'General Chevy & GM Tech Questions' started by Coneklr, Aug 31, 2009.

  1. Coneklr

    Coneklr Member

    How accurate is the MPG reading on the DIC. The best I'm getting out my truck is 13.0 MPG. My wife has a 2500HD 4x4 crew cab with 8 ft bad. She is getting 13.2 MPG. Argh! She also tows a 5th wheel/goose with three horses almost every weekend about 25 miles.

    Should I expect more than 13.0 MPG?
  2. ChevyFan

    ChevyFan The Sheriff Staff Member 5+ Years 1000 Posts

    Over time, that figure will be pretty reliable. Remember there are factors such as what you do with the truck, how fast you drive (the faster, the worse the MPG), city driving/highway, start and stop, gun it off the line, etc. Towing a big horse trailer will kill your MPG on anything, sorry to tell you.
  3. Restlessone

    Restlessone Member

    I've got pretty much the same truck and am getting about 18.5 miles per gallon. That's mostly empty on the highway. I can watch the guage go down in the city. The truck is new to me, about 3k miles total mileage is about 45K
  4. ChevyFan

    ChevyFan The Sheriff Staff Member 5+ Years 1000 Posts

    Yeah, the range between city and highway is real ... that's why there are two MPG numbers on your sticker when you buy it. A Prius in heavy city driving will get 15 MPG just like anything else. Towing is another factor and it will kill your MPG.
  5. Coneklr

    Coneklr Member

    Hmmm... can you get around 18mpg with the 6.0L like I have in my truck?

    I hear ya about the horse trailer towing killing MPG. That's what erks me. My wife tows the horse trailer with her truck.
    I never tow with mine, just highway miles down HOV lanes commuting to work, hardly any stop and go at all. It's roughly a 60 mile round trip commute. I do have a heavy foot though. Maybe it's heavier than I thought. It's the racer in me. lol
  6. Restlessone

    Restlessone Member

    On your DIC there is an instantaneous mileage section. Put it on the that and watch what happens when you hop on the gas. I've seen mine down around 3 mpg when I floor it. Taught me to slow down a little.
  7. Coneklr

    Coneklr Member

    I did try that. I think it sat at 0mpg most of the time....lol not really but it was hard to keep it at any decent mpg. I'm now trying cruise control enabled when ever possible except on very hilly terrain. Seems to be helping a bit.
  8. CarpenterGuy

    CarpenterGuy Epic Member 5+ Years 500 Posts

    you shouldn't be getting 13.0 on the highway. i get 16 around town in my 5.3
  9. dsfloyd

    dsfloyd Epic Member 5+ Years ROTM Winner 1000 Posts

    Mine only gets 12 but its the older 6.0 and a heavier truck. Is it mean to laugh because his wife drives a bigger truck :rofl:. Just kidding I know you said she tows the horse trailer and stuff.
  10. starsilverado

    starsilverado Rockstar 100 Posts

    MPG in VA

    In Virginia there are enough hills to take advantage of GRAVITY! Over the years I have noticed most people coast down a hill and end up powering up the other side. I take advantage of the gravity assit and power down the hills and coast up the other side. It takes less fuel to accelerate down a hill then to accelerate up a hill. Try it and see your MPG improve!

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