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  1. #1

    Question Improve fuel effiency

    Anyone have experience improving the fuel effiency. This is a chip advertised on this website and many on e-bay. I have checked with buyers from e-bay, and those that replied siad those were useless!

    I love my thrucks, but some additional miles per gallon would be awesome! A little extra horse power would not heart either.

    I have a 98 K1500 5.7L Surburban and a 2004 AWD Yukon Denal XL 6.0L

    I look forward to reading your replies.

  2. #2

    Default

    Those eBay chips are useless.

    On the money you spend to try and improve fuel economy by 1 maybe 2 mpg why not spend those hundreds of dollars on gas? Just my $0.02

    ________2013 4C Rated__________


  3. #3

    Default

    I have a corsa exhaust system, k&n air filter, and a jet programmer on my 2003 yukon xl, with a 5.3l. The fuel economy changed slightly with this additions. I went from 16 mpg on the freeway to around 19mpg. That is if I drive at 68 mph. If I go above 70mph it drops to 17 mpg or below. The exhaust and filter were on it when I bought it. I had the jet programmer from my 2002 silverado. It does shift a lot smoother, has a little more power, and the engine does sound like it has an easier time moving the yukon up hills after I put the programmer on.

    1995 Silverado 4x4
    6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
    4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge

    2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors, http://www.gmtruckclub.com/forum/sho...5-GMC-Yukon-XL
    2002 Silverado ext cab 2wd (Sold)
    2003 Yukon XL (Totaled)

  4. #4

    Default

    Come on guys,

    I don't want to spend big bucks for a 1 mile per gallon improvement, but refuse to accept with all of you experts out there that no one is willing to share how best to improve gas milage!

  5. #5
    Sr. Apprentice
    Join Date
    Mar 2013
    Location
    Currently living in Medford, Oregon. Was raised in Athens, Georgia
    Posts
    69

    Default

    I used to own a 05 Tahoe with the 5.3L. I put a flowmaster exhaust ($145 installed) and a K&N air intake ($245 installed it myself) and it improved my gas mileage a lot. I went from getting 295 miles to a tank to almost 400 miles to a tank.
    2008 6.2L GMC Sierra Denail

  6. #6

    Default

    Quote Originally Posted by AtlantaDJ View Post
    Come on guys,

    I don't want to spend big bucks for a 1 mile per gallon improvement, but refuse to accept with all of you experts out there that no one is willing to share how best to improve gas milage!
    Unfortunately, there isn't a whole lot of "cheap" options for drastically improving fuel efficiency. Basic things like intakes and exhaust upgrades only have minimal impact to your vehicle overall (sorry folks, but it is the truth). Other big factors are your driving habits, which are a lot more easily changed. HOwever, couple those three things with highway tires (no offroaders), and lighten your truck as much as possible. Then you'll more than likely see some significant improvements.

    In all honesty, most of the things I've bought for my vehicle have been for looks and increase performance. But when I drive conservatively, even I can see about a 2-3 mpg increase average in my truck. I'm pretty sure we do have some other more knowledgeable folks who will pipe up soon, just give em some time! Good luck on your mods, and let us know what you end up doin!

    2010 GMC Sierra 1500 SLE Extended Cab Z71 4X4 5.3L Flex Fuel
    MagnaFlow single in duel out system
    Volant CAI & Ram Air Scoop with Power Core Filter
    Rhino Tuff Grip Spray in Bed liner
    Undercover Classic Tonneau
    Trail FX Bug "deflector"
    AVS Window Deflectors
    Black Powder Coated Nerf Bars
    RECON L.E.D. Interior, 3rd Cab light, Projector headlights, and Taillights
    ATX Crawl Wheels wrapped in BFGoodrich Rugged Terrain tires
    CalTrend Neoprene seat covers
    2" leveling kit from Max Trac
    Diablo Trinity with Diablew Tune

  7. #7

    Default

    Quote Originally Posted by Drake_korthos View Post
    Unfortunately, there isn't a whole lot of "cheap" options for drastically improving fuel efficiency. Basic things like intakes and exhaust upgrades only have minimal impact to your vehicle overall (sorry folks, but it is the truth). Other big factors are your driving habits, which are a lot more easily changed. HOwever, couple those three things with highway tires (no offroaders), and lighten your truck as much as possible. Then you'll more than likely see some significant improvements.

    In all honesty, most of the things I've bought for my vehicle have been for looks and increase performance. But when I drive conservatively, even I can see about a 2-3 mpg increase average in my truck. I'm pretty sure we do have some other more knowledgeable folks who will pipe up soon, just give em some time! Good luck on your mods, and let us know what you end up doin!
    Agreed!! Unfortunately there is no cheap add on that is going to net you 5mpg. If there was, chances are it would have came installed on the truck from the factory. You can add duel exhaust, cold air intake, underdrive pullys, and a programmer. Then drive very conservatively. You MIGHT net a few mpg increase. If there was a "miracle cure" for increased mpg we would all have it. Your greatest chance of an increase would be a custom tune from someone like @06MonteSS . The tunes are custom for YOUR motor, not a basic box tune that come with a standard programmer. That would be the best way to have your engine running as efficient as possible. Then every time you add something (intake, exhaust) you need to have it retuned. But, just like everything else, mpg increases are not guaranteed. The best thing you can do is make sure that your tires are properly inflated. Keep up on maintenance, spark plugs, wires, air filter, fuel filter.
    Last edited by Pikey; 04-11-2013 at 12:20 PM.

  8. #8
    Sr. Apprentice
    Join Date
    Mar 2013
    Location
    Currently living in Medford, Oregon. Was raised in Athens, Georgia
    Posts
    69

    Default

    So basically, don't drive with a lead foot haha

  9. #9

    Default

    Quote Originally Posted by AtlantaDJ View Post
    Come on guys,

    I don't want to spend big bucks for a 1 mile per gallon improvement, but refuse to accept with all of you experts out there that no one is willing to share how best to improve gas milage!
    Read this PDF, it is for trucking but the basic principles are the same for any truck or car. That is the best way to improve gas mileage!
    2002 Chevy Silverado & 1995 Ford Bronco

    02 Silverado: 50K miles, 20" Motto Rims, Flowmaster 50 Series
    95 Bronco: 160K miles, 4" Superlift, 33/12.5/15 Mickey Thompson
    01 Civic: 75K miles, DD
    -Erik



  10. #10

    Default

    Sorry to say but your pretty much boned in the mileage department. I have done pretty much everything mentioned about (except ebay gas scam crap) and my mileage went from a 9-10mpg to a mind shattering 11. :P


    Nag.

    .....ya clock faster and faster till the desire for speed overcomes the fear of bus.....

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