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Discussion in 'Interior Components' started by saratoga, May 4, 2008.

  1. saratoga

    saratoga Unpaid Help Staff Member Moderator

    May 3, 2008
    Lithia, FL
    I've finally read my owner's manual and have started the calibration procedure to get the gallons used and MPG displaying more accurately. Has anyone else done this and how many tanks did it take you to get it to where things jived? I'm on tank no 2 now and it's no where near close... in fact it was closer right out of the box with no calibration.

    Thanks in advance.
  2. nosliw

    nosliw Recruit

    May 3, 2008
    i'm on my second tank also and it still seems optimistic with the MPG readings. is yours reading high or low?

    is it close when estimating how much you put it when you fill up? DieselA, right?
  3. SfcJones


    May 3, 2008
    South Ga.
    It took about 5 fillup's to get it right, now I don't even mess with it.
  4. RYDNHI4X4

    RYDNHI4X4 Halt Halt Or I'll Release My Dog

    May 3, 2008
    San Antonio, TX
    Which manual are you guys talking about? The Duramax Diesel Manual or the just Silverado/GMC Truck Manual?
  5. saratoga

    saratoga Unpaid Help Staff Member Moderator

    May 3, 2008
    Lithia, FL
    It's reading way low. Just cruising at 45mph it's showing like 6.5 GPH and 7 MPG which I know is way off. I put in something like 16.4 gal and it showed 4.5. Adjusted it up to 16.4 before driving off. Yes, I've got the engine size and Diesel a selected. The MPH is right on with the GPS and speedo.

    Thanks... I'll stick with it and see what happens.

    Neither. :D

    This is for a Scangauge II, a monitor that plugs into the OBDII port under the dash since I don't have the steering wheel controls and all of the other DIC functions that come with them.


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