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Thread: 2018 3500 mileage slowly degrading

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    Godwinjohn's Avatar

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    2018 3500 mileage slowly degrading

    I have an 18 3500. I pulled a camper home from Colorado to Oklahoma and since the my average unloaded mileage is never better than 13mpg.

    At 50k miles im starting to hate the truck.


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    No Vacancy Power247's Avatar

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    Re: 2018 3500 mileage slowly degrading

    Check the MAP sensor and clean or replace as necessary.

    The last time I had slowly declining MPGs that was the culprit.

    I bought a replacement, swapped out the original and cleaned the original up and saved as a spare.

    I got nearly 2 MPG back for under $50.

    Greg
    2012 | RAM 2500 | CCSB | MM3 tuned by Double R Diesel
    2016 | Heartland Pioneer | DS310

    Greg
    2019 | RAM 2500 | CCSB | 6.4 HEMI

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