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  1. Sudden MPG drop- engine issue or winter diesel?

    Reprogram what and how? haha. No, I've been on 33's since august, and my mileage plummeted in November.

  2. Sudden MPG drop- engine issue or winter diesel?

    I'm ok with a drop, but from 26mpg to 20?? I'm going to add the diesel additive as suggested, but I also realize that I have not noticed a single regeneration. If its happened, I've never seen it displayed on my dash, and I do a decent amount of highway driving.

  3. Sudden MPG drop- engine issue or winter diesel?

    My what?

  4. Sudden MPG drop- engine issue or winter diesel?

    Not every time, depending on the temps. No one here trusts the computer's mpg calculations, I'm guessing.

  5. Sudden MPG drop- engine issue or winter diesel?

    So, my '23 Gladiator Sport S has been awesome. Especially in terms of mileage, even after putting on 33" tires I was getting 27-25 MPG. I have no other mods. 14K miles in 7 mos. In late October, my mileage started to drop like a rock. My average mileage has plummeted from 27-25 down to 20-21...




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