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Is this gas mileage correct?

Discussion in '4 Cylinder' started by yellowdotz, Apr 13, 2013.

  1. Apr 13, 2013 at 4:11 AM
    #1
    yellowdotz

    yellowdotz [OP] Well-Known Member

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    I just drove out the showroom and I measured how much miles I can drive for quarter of a tank. from 3/4 to 1/2 tank I drove 85 miles.

    I did the math. 85x4=340/21= 16.2mpg! does that sound right to you? Where did I go wrong?

    I have a 2013 2.7 access 4x4 manual taco

    can anyone help I'm kinda freaking out here about this.
     
  2. Apr 13, 2013 at 4:14 AM
    #2
    rickmeseke

    rickmeseke subaru of america

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    you cant go off the needle.

    get a full tank, reset your trip, go through it, fill up, when the gas nozzle stops you from filling, take the amount of gallons (18.7) as an example, divide it by the miles you got that trip.
     
  3. Apr 13, 2013 at 4:17 AM
    #3
    yellowdotz

    yellowdotz [OP] Well-Known Member

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    you think it'll go up from there? 16 is horrible.
     
  4. Apr 13, 2013 at 4:18 AM
    #4
    rickmeseke

    rickmeseke subaru of america

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    driving habits, weather, break in period, alot of variables, but yes, 16 is what my v6 gets city, yours will get better
     
  5. Apr 13, 2013 at 4:20 AM
    #5
    Mr. Brown

    Mr. Brown Well-Known Member

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    Last edited: Apr 13, 2013
  6. Apr 13, 2013 at 4:26 AM
    #6
    yellowdotz

    yellowdotz [OP] Well-Known Member

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    yah but it's a v4 2.7. the 6 bangers are advertized to get that in the city. I drove about 30% city 70%hwy not past 65mph.
     
  7. Apr 13, 2013 at 4:29 AM
    #7
    Mr. Brown

    Mr. Brown Well-Known Member

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    It's only rated 18 city, it's still breaking in, and your math is still probably off. check the mpg's after the first oil change. It should have evened out by then.
     
    Last edited: Apr 13, 2013
  8. Apr 13, 2013 at 4:30 AM
    #8
    rickmeseke

    rickmeseke subaru of america

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    once again the break in period is a huge factor and you also can not rely on the gas needle.

    my truck, for example, the first quarter of the tank (according to the needle) i always get 150+- miles, but then once i hit that 3/4 quarter mark my needle goes down fast.
     
  9. Apr 13, 2013 at 4:33 AM
    #9
    yellowdotz

    yellowdotz [OP] Well-Known Member

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    ok i'll try filling up once the light turns on and noting the gallons on the pump. then divide the total miles by that number as you said.
     
  10. Apr 13, 2013 at 11:44 AM
    #10
    Silver Streak

    Silver Streak Well-Known Member

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    my 4 banger gets that 16 in the frigid winter months. Last tank was 20 average with mixed driving
     
  11. Apr 13, 2013 at 11:46 AM
    #11
    yellowdotz

    yellowdotz [OP] Well-Known Member

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    good to know. here in SoCali weather is not a factor.
     
  12. Apr 13, 2013 at 11:52 AM
    #12
    woodygg

    woodygg Well-Known Member

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    hate to say it, i'm sure you'll get better than that - but you did buy a 4x4 truck known to get not that great mpg...
     
  13. Apr 13, 2013 at 11:55 AM
    #13
    yellowdotz

    yellowdotz [OP] Well-Known Member

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    yah..i just got this one because this particular model had better numbers reported on fuelly. I'm guessing I just can't go by how i measured it. I'm going to repost with the full tank counted from fill up to indicator light.
     
  14. Apr 13, 2013 at 2:01 PM
    #14
    ecoterragaia

    ecoterragaia Well-Known Member

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    Vehicle gauges are not very accurate, you need to do as others have said. Fill up, keep track of miles, then fill up again. Doesnt matter what the level of the tank is.
     
  15. Apr 13, 2013 at 2:06 PM
    #15
    Rich91710

    Rich91710 Well-Known Member

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    No...

    Fill it up NOW.
    You don't know how full the tank was when you drove off the lot. If it wasn't full, then your calculation will be invalid.

    Go to the station now and top it off.
    Reset the trip odometer.
    Drive it for 200 or 300 miles, and top it off again.
    NOW divide the odometer reading by the number of gallons used.
    Reset the odometer and do it again.

    Or... follow the link in my signature block and create a Fuelly account. You then text your total mileage, price, and gallons used to Fuelly and they track it for you and send a text back with your mileage on that tank.

    You don't have to wait for the light to come on... the needle will be very close to or on "E" when that happens... and you'll still have about 3 gallons left.
     
  16. Apr 13, 2013 at 2:11 PM
    #16
    Skinny Rogers

    Skinny Rogers U know fish can hear u thinking just b4 u sneeze

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    I get about 315 to 330 in town driving. Highway I can run 400 plus easily with more miles to the tank if I keep going.
     
  17. Apr 13, 2013 at 2:14 PM
    #17
    Rich91710

    Rich91710 Well-Known Member

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    5-lug 2wd here... best tanks have been in the mid-25mpg range, worst tanks have been around 23.
    Average is about 24.5 for the last year.
     
  18. Apr 13, 2013 at 4:08 PM
    #18
    iroh

    iroh Well-Known Member

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    Tacoma gas gauges are just a ballpark guess. Compare my previous vs current tacoma:
    start moving from full: 09 v6, 100 miles vs 07 4 cyl, 45 miles.
    3/4 tank: 170 vs 135
    1/2 tank: 230 vs 240
    1/4 tank: both 330
    typical mileage: 21 vs 24

    Can't judge from the gauge at all.
     
  19. Apr 13, 2013 at 5:15 PM
    #19
    Rackster

    Rackster Well-Known Member

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    Weather there is rather stable as you point out. But, weather is a factor - just less so. Rain (when it does rain there) will make your tires sticky, create drag, and impact your MPGs.

    It's early on yet. I suspect you'll be able to pull EPA estimates or better after you run a few tanks and note your driving habits and traffic. With the manual transmission, EPA should be easily achievable. Good luck!
     
  20. Apr 13, 2013 at 5:39 PM
    #20
    yellowdotz

    yellowdotz [OP] Well-Known Member

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    so the route I'm taking is: top it off from the instant the indicator lights up and write down the exact gallons in the tank to top off. Then drive until it goes off again. I can divide the total miles driven to the number of gallons in the tank I wrote down. This would be an accurate assessment.
     
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