Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

what kind of mileage are you gettin out of your 6.2s?

Discussion in 'The Garage' started by KGsK5, Nov 3, 2006.

  1. KGsK5

    KGsK5 1/2 ton status

    Joined:
    Aug 26, 2006
    Posts:
    343
    Likes Received:
    0
    Location:
    Havre de Grace, Maryland
    just filled mine up... dont have a feul gauge atm so ive been guessin... it looks liek im only getting less than 15... going witht he fact that i only got around 500 miles wiht 32 gallons. just wanting to see if anyone is getting any better than that or if thats about right.
     
  2. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

    Joined:
    Jul 23, 2000
    Posts:
    36,170
    Likes Received:
    1,380
    Location:
    E-town baby!
    Freeway you should be seeing 20-22, in town 15-16 sounds about right.

    Rene
     
  3. ssped

    ssped 1/2 ton status GMOTM Winner

    Joined:
    Jan 5, 2006
    Posts:
    1,529
    Likes Received:
    0
    Location:
    Mission Viejo
    I dunno. I have a screwed up fuel guage and no speedo. When it gets a little under half a tank I fill er up. I know it is better that the 6mpg I get in the BB Furd I have.
     
  4. colbystephens

    colbystephens 1 ton status GMOTM Winner

    Joined:
    Feb 24, 2005
    Posts:
    10,924
    Likes Received:
    20
    Location:
    Oregon
    w/ 6.2/465/205/4.10s on 35's, i get 20 mpg on the highway. not bad for no overdrive!
     
  5. jp0863

    jp0863 1/2 ton status Premium Member

    Joined:
    Aug 15, 2004
    Posts:
    566
    Likes Received:
    0
    Location:
    clovis, ca
    6.2/th400/4.10's/35's... i get around 18-20 almost all highway, very little in town driving. my speedo is way off so i just compare what my truck gets for roughly the same amount of driving. the 6.2 gets better mileage than my 04 super duty dually with the 6.0 diesel.
     
  6. muddybuddy

    muddybuddy 3/4 ton status

    Joined:
    Jan 29, 2004
    Posts:
    8,933
    Likes Received:
    1
    Location:
    Fairfax Station VA
    my 6.2/700r4/208 doesnt seem to get good mpg either, its got 3.08s and 35s. any way to fix this without regearing?
     
  7. u2slow

    u2slow 1/2 ton status

    Joined:
    May 9, 2001
    Posts:
    2,217
    Likes Received:
    0
    Location:
    BC Canada
    17mpg city/highway mix on my C20 Suburban 6.2L/SM465/3.21/33s
     
  8. 85-m1028

    85-m1028 1/2 ton status

    Joined:
    Apr 26, 2005
    Posts:
    485
    Likes Received:
    0
    Location:
    costa mesa california
    th400, 4.56 gears, 35" x-terains= 11mpg no matter how I drive!
     
  9. diesel4me

    diesel4me 1 ton status Premium Member

    Joined:
    Jul 24, 2003
    Posts:
    17,553
    Likes Received:
    939
    Location:
    Massachussetts
    mine gets..

    My 82 K20 6.2/TH400 gets about 15-17 around town,dont use it much on the highway so I cant say what the mileage is on longer trips at higher speeds..

    I think I'm getting less MPG than when I first got it..not sure why,probably letting it sit most of this year didn't help the injectors any..might be related to my transfer case refusing to shift into 2HI,I have to leave the hubs unlocked,the front shaft always gets power regardless of what range I put the T-case in..more drag= less MPG..:(

    I'm not sure what gear ratio it has,probably 4.10's..it feels like it could use an overdrive after 55 mph..but it gets about the same or better milage as my 79 C10 with a 305 did,just wish diesel wasn't 50 cents a gallon
    more than gasoline costs!:mad: --not a good time for me to have sold my gas powered truck I guess..:doah:
     
  10. KGsK5

    KGsK5 1/2 ton status

    Joined:
    Aug 26, 2006
    Posts:
    343
    Likes Received:
    0
    Location:
    Havre de Grace, Maryland
    im runnin the 6.2/700r4 with stock gearing and 33s... my trans is SLIPPPPIIINNNGGGG badly and im thinking that that may have a bit to do with it. i also drive more freeway than in town... 55-65 mph range... well i think ill be gettin a tranny rebuild soon so well see if that helps any
     
  11. k204dr

    k204dr 1/2 ton status

    Joined:
    Aug 27, 2004
    Posts:
    463
    Likes Received:
    0
    Location:
    TN
    6.2 turbo, th400, 3.42 gears, 31.5 khumos, have gotten 16-17, but recently its been getting 13-14. just checked the trans fluid and it was 1.5 quarts low. we'll see what it gets when the 4l80 goes in soon. also getting ready to drop in a 4.10 rear, as the 3.42 is bent.
     

Share This Page