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Improve fuel effiency

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by AtlantaDJ, Feb 8, 2012.

  1. blackburb

    blackburb Member

    Keep in mind that is a 10%+ increase. That's not bad at all.
  2. Trucking

    Trucking New Member

    Great Cummins MPG Guide- I had not seen this before. Lots of good info applicable to any vehicle.
  3. DamnThatMexican

    DamnThatMexican New Member

    Not to sound critical but you have to realize that you're working against two factors: lots of horsepower and heavier vehicles. You're going to get less gas mileage than a smaller vehicle would get no matter how you go about it. So, IMO, I would just go with more horsepower and get the most out of it. Make it a beast and get a Towncar for regular driving.
  4. dbb06

    dbb06 New Member

    I had my 06 Silverado tuned by [MENTION=32828]06MonteSS[/MENTION] and have loved the extra power and even with playing with it more I have noticed a 1-2 mpg improvement. I'm sure if I stopped getting on it so much it would go up another 1-2. Well worth the $480 in my opinion since going from getting 16-17 mpg around town to 19 is nice. I haven't had any long highway drives to see the improvement there yet.
  5. K15 Blazer Guy

    K15 Blazer Guy New Member

    dont buy cheap gas. only mobile, shell, and stuff. never arco or valaro
    upgrade your ignition coil as high as you can
    get NGK spark plugs
    use B12 chemtool in the tank, vaccum lines, and trottle body ever 25,000 miles

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