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? Fuel Milage 6.0 L w/ 6 Speed Auto

Discussion in 'Chevy Trucks' started by exmark1, Dec 25, 2007.

  1. exmark1

    exmark1 PlowSite.com Addict
    Messages: 1,321

    What kind of milage are you guys getting for fuel milage with the NBS 6.0 Gas Automatic? I am thinking on trading my 01 Cummins Dodge off on a new one and am just curious. With the diesel prices what they are I am thinking the gas maybe the way to go this time!
  2. ptllandscapeIL

    ptllandscapeIL Senior Member
    Messages: 495

    I have an 06 6.0 with the 4LE80 I think tranny and i got barley 10 mpg on 3500 drw 4x4
  3. pusher21

    pusher21 Member
    Messages: 59

    wow thats not very good im also looking for info on the fuel milage on the new 6 spd ones. My buddy is getting about 13-15 mpg on his 20003 2500hd with a 6.0 ltr
  4. IMAGE

    IMAGE Sponsor
    Messages: 1,747

    Thats hwy speed, unloaded. At least in mine. Around town more like 10-12. I have the old bs and 4l80e.
  5. larryhd

    larryhd Senior Member
    from vermont
    Messages: 213


    I get 18-19 around town and 20-21 on the hwy with my 05hd with a 6.0l
    but I have chip and cooled air intake
  6. scottL

    scottL PlowSite.com Addict
    Messages: 1,613

    2007 NBS 2500 HD, 4x4, .383 rear gear, crew cab .... General around town driving includes a mix of all types of driving ... 13mpg on avg.

    ( All things gas are less expensive than diesel ;) )
  7. exmark1

    exmark1 PlowSite.com Addict
    Messages: 1,321

    Thats what I am thinking too... I have a 2004 Duramax that gets 18-20 at BEST I can't justify the extra purchase costs, fuel costs, & maintainance costs to buy another diesel!
  8. ticki2

    ticki2 Senior Member
    from NH
    Messages: 175

    Is that hand calc. or DIC ?
  9. captfudd

    captfudd Member
    Messages: 88

    my 07 gets about 11mpg on the DIC local and hiway I gotten up to 17mpg
  10. NBI Lawn

    NBI Lawn PlowSite.com Addict
    Messages: 1,797

    Right ;), I think you mean 8-9 and 10-11mpg. There is no way a 6.0 is getting that good of mileage. If it were getting that good you are getting 50% better fuel mileage than any other 6.0 in the world.
  11. IMAGE

    IMAGE Sponsor
    Messages: 1,747

    I agree.

    Do they make and HD in 2wd? [​IMG]
  12. ptllandscapeIL

    ptllandscapeIL Senior Member
    Messages: 495

    few things in mind, 1 if your only using your truck to plow in the winter, and the rest of the year its your"show peice" get a striped down gasser,if you pull trailer's,haul crap 12 months a year liek I do with my business i would go with the diesel,if its part of your fleet get diesel
  13. glousgus

    glousgus Junior Member
    from mass
    Messages: 4

    >>>>>>>>I have a 2004 Duramax that gets 18-20 at BEST I can't justify the extra purchase costs, fuel cost<<<<<<<<

    Diesels are a long term investment, you will save a ton of money on fuel, especially at 3.00 a gallon, and in general they will last much longer without repair.

    That 4-6 mpg can be a bunch of money

    I think the ford diesels are more troublesome than the cummins
  14. ChevKid03

    ChevKid03 Senior Member
    Messages: 505

    I'm getting 10.5 on the DIC. I'm thinking it's pretty accurate too. I'm getting better mileage on the city streets than I am on the highway (maybe because I have 4.10's).. :). Anyway, I've also been thinking about getting a diesel. The initial cost to buy the thing is probably what kills everyone. If you think about it. right now, gas is about $2.95 in MASS. I've seen diesel at about $3.45, tops. That's a .50 increase per gallon. Going with 24 gallon fuel tanks, my 6.0 will take me TOPS 255 miles on the average fill up driving normal. That same tank with a diesel will go about 380 miles. And that's with figuring the diesel is getting 16 mpg. They prob do better than that! I'd spend the extra $12 at a fill up if I could afford the initial cost of the diesel/Allison combo. I'd even sacrafice Dunkin a few days a week for it... My mid section could afford it, trust me.. :drinkup: Even if I weren't towing 24/7 and plowing all the time. The diesel's are bad ass with INSANE amounts of power!!
  15. turbo5560

    turbo5560 Senior Member
    Messages: 285

    what chips and what air intake are you running?
  16. scottL

    scottL PlowSite.com Addict
    Messages: 1,613

    Diesel ... gas .... cost :dizzy:

    I thought I'd quickly get some average numbers on this.

    Gas 12 mpg // Diesel 15 mpg
    $90/$3 per gal // $105/$3.5 per gal at 30 gal each ( Gas wins $15 per tank )
    360mi per tank // 460 per tank ( diesel wins at 6 gallons but only $6 per tank )
    $25 oil change 3k // $75 oil change 7k ( gas wins by $25 )
    $24 spark plugs // $72 glow plugs ( gas wins by $48 same interval )
    $0 // $7k for diesel option ( gas wins by $7k )

    Yeah, some really tow and haul, some just love the smell of diesel....
    yada,yada,parts,yada,labor,yada,yada payup
  17. turbo5560

    turbo5560 Senior Member
    Messages: 285

    what about all the extra power? or the lower maintance? or being more dependable? or being a heck of a lot more fun to drive?
    also... about your oil changes... most can get 6,000 or more miles before changes so divide your number in half
    also... not sure about the intervals of glow plugs, but my guess is spark plugs don't last as long as glow plugs, but don't quote me on that.
  18. ticki2

    ticki2 Senior Member
    from NH
    Messages: 175

    No doubt that gas is more economical for some , depends on the use of the truck .
    That said I'm not sure where you're geting your numbers from.
    My gas big block 12MPG is the high , my diesel 15MPG is the low
    Big block 10 qts oil , diesel 10qts oil , same quality ,same interval (5000 mi)
    Spark plug--- what about wires?
    $7k option----what about resale , if not that longevity.
    Glow plus , don't know yet , the one ton has 140k so far.

    They are going to ruin diesel if they keep rapeing us at the pump.
  19. scottL

    scottL PlowSite.com Addict
    Messages: 1,613

    I used AVERAGES for the numbers ( Your mileage may vary .. BWAhahahahahaha )

    Like typical 6.0l engine, big block is the exception. Typical plug life 100k - sure ride 'em until 200k doesn't mean there good or it's running right. I did take into account the oil change duration ... go ahead and do the math. Extra power - what ever, unless as I state ... you really tow or haul. Dependable ... a wash now a days. Gas mileage is average mixed driving - and don't bs me on these claims of 22mpg for city driving for diesel. Bottom line .. no one said you couldn't have your toys.
  20. ticki2

    ticki2 Senior Member
    from NH
    Messages: 175

    Guess it's safe to say you're not too big on diesels ,no biggy . Don't do city , average for me is gas 11 ,diesel 17 . My math says I save $1000 on fuel last year. Don't have any toys , just tools.