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  1. #1

    Exclamation Horrible MPG Advice!

    i have a 2000 4x4 1500 silverado lifted 3 inches with custom exhaust and thats pretty much it. im pretty positive it has a 26gal tank and i can only get about 200 miles on a tank. so thats about 7-8mpg!this is terriblee! can anyone help me out on this?
    i do normal driving city and highway

  2. #2

    Default Re

    Have you changed spark plugs and wire? fuel filter? I had the same problem. ...getting crappy mileage but I changed wire and plugs, that worked for me...
    Joser
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  3. #3

    Default

    yes i changed them to the irridium plugs, but do you have to change the wires also?

  4. #4
    Sr. Engineer ahm1127's Avatar
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    Jan 2009
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    Default

    I would! Its 10 years old, are you the original owner? How many miles? How does the air filter look? Have you changed fuel filter? Do the maintenance the GM recommends at the mileage your truck has. Good luck
    Everyday I wake up is a great day! ;-)
    05' Chevy Suburban, 11' Ford Fiesta

  5. #5

    Default

    no i am not the original owner. i bought it about a month ago
    it has 102,000 miles on it

    so if i do all of this, how much mpg do you think i would get? because i have 7mpg as of now and it is killing me

  6. #6
    Jr. Apprentice duck44's Avatar
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    Dec 2009
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    Southeast Texas
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    Default

    What size tires do you have this would affect the calculations also.
    2010 Silverado 1500 4x4 Crew LT
    6.2 L with 6 speed transmission

    Hold my beer while I get the chain!

  7. #7

    Default

    It has a lift so what size tires are on it and whats the gear ratio? This could be part of your problem.
    A full tune-up cant hurt.

  8. #8

    Default

    Quote Originally Posted by duck44 View Post
    What size tires do you have this would affect the calculations also.
    well on the tires it says LT 305/70R16

  9. #9

    Default

    Quote Originally Posted by tbplus10 View Post
    It has a lift so what size tires are on it and whats the gear ratio? This could be part of your problem.
    A full tune-up cant hurt.
    im not sure what gear ratio it has. and i just got into trucks and i dont know how to check or change it
    can u give me some advice on that too?

  10. #10
    Sr. Engineer
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    Jun 2009
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    San Diego, CA
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    426

    Default

    Have you replaced the fuel filter and fuel pump?
    Black Bear Performance- Custom Tuning Solutions

    Authorized EFILive and MAGNACHARGER seller

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