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fuel mileage for 5.7 350?

Discussion in 'Chevy Trucks' started by jbone, Oct 31, 2006.

  1. jbone

    jbone Senior Member
    Messages: 154

    I know this question in this forum has been asked plenty of times but I couldnt find one for the 5.7 350. this is in regards to plowing. I have a 94' 2500 light duty 3/4 ton. Im not sure but I think it has either 3.73's or 4.10's, 5spd manual. Im just trying to figure out an estimate of gas mileage so I can figure out what my costs may be.
  2. murphyslaw

    murphyslaw Senior Member
    Messages: 443

    take ur city mileage and knock 3points off it thats what u could expect to use in fuel, but remember u dont cove much mileage while plowing so using mileage is kinda usless. figure how often u drive and how often u fill up. figure a week of regular driving will be close to a night of plowing, exept it also depends on how much snow and what kinda snow. also how many accounds how many hrs of plowing a night spacing of accounts there are so many variables it will drive u nuts. with my 88gmc k3500 with 6.2l i can plow all my accounts(typicly 6hrs) in wet heavy snow with a run around of about 25miles. and use about 1/8th of a tank on bad nights 1/4 tank. now in my 360 powered dodge my guys plow the same route with me and burn about 1/2 tank.

    to many variables. so i would say as before use the fuel u would use in a norman week, then if its alot less, send the customers a letter telling them that ur droping there rates. i dont know now im just rambling on and should just delete this post.
  3. 1/2 ton with TBI 350 and 3.73:1 gears regularly got between 12 and 14mpg even though sticker said 14cty/16hwy. I'd imagine you would do worse with a heavier truck...but better with the manual trans. Figure on way worse with a plow on the front (Drag and weight). Plus...you not putting many miles on when plowing...more like "working" the truck. I'd guess less than 10mpg.
  4. jcesar

    jcesar Senior Member
    from Mi
    Messages: 492

    96 Vortec 350. Empty, and rinning on the highway, I get between 16.7 to 17.2mpg. But never gonna see that with a plow on, let alone pushing snow. Might want to try a different formula for that one. Sorry, if it isnt much help.
  5. mayhem

    mayhem PlowSite.com Addict
    from Peru MA
    Messages: 1,016

    3 points as in 3% or 3 points as in 3 mpg? I'm assuking its the latter, not the former.
  6. murphyslaw

    murphyslaw Senior Member
    Messages: 443

    yes the former as in if u get 15 call it 12
  7. Groundwork

    Groundwork Member
    from Vermont
    Messages: 56

    5.7L + Plowing = Terrible MPG

    I only figured it out once and the number wasn't good. I filled up, plowed a couple hours and figured I got about 7 MPG or less. But then again I didn't buy the truck for gas mileage, I bought it to make money. Just make sure you charge enough to pay for your gas. The way I look at it is the first place that I drop my plow pays for the gas during the storm. On a big storm I usually only use half a tank or less.
  8. GL&M

    GL&M Senior Member
    from PA
    Messages: 223

    97 K2500- 8800 GVW-4:10 gears 10-11 MPG pulling my trailer. 8-9 Plowing

    13-14 MPG cruisng the highway. Thats as good as it gets for me.
  9. jbone

    jbone Senior Member
    Messages: 154

    thanks for the help guys!