GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Page 1 of 3 123 Last Post byLast Post by
Results 1 to 10 of 23
  1. #1

    Default whos got a 2500 6.0 how did you better your mpg how much difference?

    i have a 2003 2500 6.0. i was wondering if anyone got better then the 11mpg i'm currently getting and how you did it, how much mpg did you gain, and what did it cost?

  2. #2

    Default

    How do you even get 11???!!

    2006 Duramax LBZ
    Edge Evo
    4'' Diamond eye to 6'' tip
    16'' ion alloy, 33'' fierce attitudes
    Lots of work left to do!

  3. #3

    Default

    truck is stock i make sure the air filter is clean and the right tire pressure , maybe its the 10% enthenol in the gas, i bought the truck with 105,000 miles and its been getting about 11mpg going to work everyday.

  4. #4

    Default

    darn I love my lil 4.3... Is that hiway or city?
    1998 K1500 Ext. Cab 4.3 5spd
    Amsoil, CIA

    2007 Harley Davidson Vrod
    Amsoil, Vance & Hines 2into1, K&N Topless,
    Screamin Eagle Racetuner, StageII cams,
    Carbon fiber front fender, and a few more lil goodies:wink:

  5. #5
    Jr. Mechanic b-radical's Avatar
    Join Date
    Nov 2009
    Location
    San Diego, California, United States
    Posts
    131
    Blog Entries
    1

    Default

    Sclam! I love my 4.8L, whats up with the 10% ethanol in your tank? how much $ do you save by adding 10% ehanol. Does adding ethanol have any side effects on the engine?


    2000 Silverado, 4.8L, LS
    3" Dynomax cat back exhaust
    Drop-in K&N air filter
    200 amp Nations alternator
    KYB GR2 Shocks
    Bluetooth OBD2 adapter with Torque App on Samsung Note 2
    Custom Stereo System l Pioneer/ Boss door Speakers l 1200 watt Performance Teknique amp l 1 farad capacitor l 2 12" kicker comp subwoofers
    Slider rear window l Locking tailgate, de-baged l 265/75/16 Bridgestone Dueler H/L tires l Fully synthetic oil l Tinted windows
    4l65e upgrades - five pinion planetaries l HD sun shell l high performance band

  6. #6

    Default

    10% ethanol comes in almost every gas pump in the country.
    2004 Silverado, Base trim, 4.8 V8, 158,000 miles
    -Spectre (cause it was cheap) cold air intake
    -Flowmaster 50 series muffler
    -Self-installed stereo with Sony head unit, Polk Audio speakers, Polk Audio PA1100.5 amp (huge and powerful) and a BOSS 800 watt sub (fitted inside a tiny homemade enclosure behind the passenger seat)
    -vette servo installed in the trans
    -front & center mount after market trans cooler
    -horns from a 1970's cadillac!!!

  7. #7

    Default

    Quote Originally Posted by b-radical View Post
    Sclam! I love my 4.8L, whats up with the 10% ethanol in your tank? how much $ do you save by adding 10% ehanol. Does adding ethanol have any side effects on the engine?
    In California its 10% ethanol in the gas. I dont think it runs as well but were gonna save the world here in Cali (sarcasm).

    When my 2500 6.0 was newer I could get close to 13 almost all highway, even hit 15 on an a 600 mile highway trip to northern california, but have always averaged in the 11-12 range mostly highway. aint nothing you can really do to increase mileage. its a brick. I have magnaflow exhaust, airraid intake and tbs but didnt notice any improvements. when I lifted my truck I went to 4.10's instead of 4.56 since I do about 85% highway on my commute so the rpms were lower than stock on highway, but had to sacrifice some get up and go. this allowed me to maintain the same mileage from when it was stock. Basically I drive like a grandma most of the time in it. 65 on the highway and a stay out of the throttle (gotta punch it every now and then though). when doing mostly highway like this I will still get between 11-12 mpg. when I have to do more city driving it obviously drops. In the end sounds like your mileage is right on and there aint much you can do about it.
    David
    2004 Silverado 2500 Crew Cab 4x4, AMSOIL EA air filter, Granatelli MAF sensor, Throttle body spacer, Magnaflow exhaust (true dual to 2 in 1 out muffler), 6" ProComp lift (add a leaf and 5" superlift rear block), Bilstein shocks, 35's (Cooper Disoverer ST) and 4.10 gears, Rhino Liner, EGRUSA fender Flares and widow visors, extended stainless steel brake lines, firestone airbags w/onboard air compressor, Pioneer Avic X940BT navigation, Accel backup camera.
    http://www.gmtruckclub.com/forum/sho...Silverado-2500
    1960 Land Rover Series II 88
    2001 Pontiac Sunfire
    2013 Toyota Avalon Limited (Wife's Car)
    NRA Life Member

  8. #8
    Legend

    Join Date
    Jun 2006
    Location
    River Ridge Louisiana-4 miles W of New Orleans-didn't flood-water stopped 800 yards away.
    Posts
    1,613

    Default

    11mpg isn't bad if your trip to work is partially city/suburban.
    The EPA claims that 105 ethanol should only drop mpg by 3%,
    But I'm a member of a MPG forum, and the folks there despise ethanol gas and claim it drops their MPG by 5-10%.
    I'm pretty sure it has dropped my Prius mpg from 42 down to 40 or less- 5% or more.
    P&G pulse and glide- gets me about 16mpg in city driving-once it is warmed up. Actual tank mpg is about 13 mpg in my 1998 Suburban- in pure city short trip driving.(4 miles one way).
    Try pulse and gliding
    Charlie
    1998 suburban-
    1/2 ton

    199500 miles
    River
    Ridge,LA

  9. #9
    Sr. Engineer marko54's Avatar
    Join Date
    Sep 2010
    Location
    N.E. wisconsin
    Posts
    375

    Default

    Quote Originally Posted by Bern1982 View Post
    i have a 2003 2500 6.0. i was wondering if anyone got better then the 11mpg i'm currently getting and how you did it, how much mpg did you gain, and what did it cost?
    I sure hope you are not getting 11mpg with a 6.0 on the hiway! My 07 suburban 2500 with the 6.0 gets atleast 18.5 to 20 on the hiway and in city i avg.
    13.9 and up. I keep my fooy out of it and drive no faster than 64 mph and have my Edge CS set at level 2 Economy. I have gotten 20 mpg on a decent trip.
    2007 Suburban 2500 Edge evolution CS leveled 265 goodyear Silent Armor Pro Grade Kenwood DNX6180 Nav.Radio





    OH Goody, another Pickem up truck dripping with Chrome Crap!

  10. #10

    Default

    Quote Originally Posted by marko54 View Post
    I sure hope you are not getting 11mpg with a 6.0 on the hiway! My 07 suburban 2500 with the 6.0 gets atleast 18.5 to 20 on the hiway and in city i avg.
    13.9 and up. I keep my fooy out of it and drive no faster than 64 mph and have my Edge CS set at level 2 Economy. I have gotten 20 mpg on a decent trip.
    i get better mpg on the highway but back and forth to work everyday is hills and city and i've been getting about 11.3 mpg. i wasn't sure if putting a catback exhaust or a cold air intake would help much

Page 1 of 3 123 Last Post byLast Post by

Similar Threads

  1. Difference between a 1500 and 2500? - Silverado 1500 vs 2500.
    By 99monguse in forum Chevy Suburban Forum (GMC Yukon XL)
    Replies: 9
    Last: 04-28-2013, 07:37 PM
  2. Whos goes Ice Fishing??
    By murdog94 in forum Sports & Outdoors
    Replies: 4
    Last: 01-20-2011, 11:38 PM
  3. Whos doing what for the holidays?
    By murdog94 in forum The Coffee Shop ~ Chit Chat
    Replies: 17
    Last: 12-18-2010, 02:08 PM
  4. whos truck? its NICE!!
    By 1_SIK_SS in forum Chevy Silverado Forum (GMC Sierra)
    Replies: 0
    Last: 06-29-2010, 11:50 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •