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how did Mr. EPA determine MPG of my SR5 V6?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by NiceGuyEddie, Jan 31, 2010.

  1. Jan 31, 2010 at 9:01 PM
    #1
    NiceGuyEddie

    NiceGuyEddie [OP] Well-Known Member

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    i have a dbl cab 4x4 sport long bed. sticker says:

    CITY MPG HIGHWAY MPG
    16..... 20
    expected range................expected range
    for most drivers............... for most drivers
    13 to 19 MPG....................17 to 23 MPG


    the first few fillups were 90% local, 10% highway. REAL easy on the throttle. i got 13-14 MPG.

    i just did an 800-mile trip to Arizona. checked the highway mileage three times. my best was 17.9 MPG. this was at 75mph, mostly flat Arizona desert, no load, cruise control. no a/c, windows up.

    how did Mr. EPA do it? does anyone really get 23 MPG highway? that's only 5 less than my Honda.
     
  2. Jan 31, 2010 at 9:06 PM
    #2
    jhodge83

    jhodge83 Any dog under 50# is a cat and cats are useless... Moderator

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    wat?
    stock i was getting 21-22 highway and even now i'm still getting 18 highway. lots of threads on here about MPG's
     
  3. Jan 31, 2010 at 9:12 PM
    #3
    tvbd56

    tvbd56 Epic Member

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    well you will probaly get 20 mpg if you don't drive 75mph:facepalm:
     
  4. Jan 31, 2010 at 9:13 PM
    #4
    jhodge83

    jhodge83 Any dog under 50# is a cat and cats are useless... Moderator

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    wat?
    yeah....anything over 2k rpms kills the gas.
     
  5. Jan 31, 2010 at 9:19 PM
    #5
    HILOTOY

    HILOTOY HILOTOY

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    got 20.7 mpg today:eek: driving out to the country and back, was pretty shocked.................usually get only 13 to 15 in town:rolleyes:
     
  6. Jan 31, 2010 at 9:28 PM
    #6
    DuderAbides

    DuderAbides Well-Known Member

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    i've been doing about 95%city driving, goin real nice and slow, and with only about 500miles on my truck i've been getting a constant 16.7mpg so i'm not too worried, im sure it'll go up once the engine gets worn in a bit more
     
  7. Jan 31, 2010 at 9:44 PM
    #7
    nuckinfuts

    nuckinfuts NyQuil on the rocks.

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    They use a complex system of levers and pulleys. That and they don't go over 60...
     
  8. Jan 31, 2010 at 9:56 PM
    #8
    NMG

    NMG Well-Known Member

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    Yup. The aerodynamics of a truck (any truck) are simply terrible and once you get up to those speeds, your milleage will really suffer. 55-60 is probably about ideal as far highway mileage goes. I get 21-22 on the highway keeping it at just over 60.
     
  9. Jan 31, 2010 at 10:04 PM
    #9
    WilsonTheDog

    WilsonTheDog Kylie's dad

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    It's winter...do you have winter gas in CA?

    I have yes.
     
  10. Feb 1, 2010 at 7:40 AM
    #10
    NiceGuyEddie

    NiceGuyEddie [OP] Well-Known Member

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    hi friends:


    Yeah, I noticed there are a lot of MPG threads here, but still, does anybody know how exactly how they tested the truck?


    I should have plugged my industrial fan into the 120V outlet and faced it backwards!
     
  11. Feb 1, 2010 at 7:46 AM
    #11
    mjp2

    mjp2 Living vicariously though myself Moderator

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    I'm pretty sure it's a dyno test at 45mph. Wind resistance, acceleration, realistic speeds, etc. aren't taken into account.

    Now that I've thrown that second-hand information out there I'll go do some research.
     
  12. Feb 1, 2010 at 7:55 AM
    #12
    mjp2

    mjp2 Living vicariously though myself Moderator

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    Found it.

    http://www.epa.gov/fueleconomy/420f06009.htm#background

    "The city and highway tests are currently performed under mild climate conditions (75 degrees F) and use acceleration rates and driving speeds that EPA believes are generally lower than those experienced by drivers in the real world. Neither test is run with the use of accessories, such as air conditioning. The highway test has a top speed of 60 miles per hour, and an average speed of only 48 miles per hour. "
     
  13. Feb 1, 2010 at 7:56 AM
    #13
    Kyouto42

    Kyouto42 Iron Beard

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    Your city is still on the low side it seems. I average about 80mph highway, and 'city' driving I pretty much lay rubber down from every stop... and I still get over 18 avg.

    I also only use 91 octane (if in AZ, whatever the max grade is except racing fuel elsewhere), and only QuikTrip, Chevron, or if I'm desperate Shell.
     
  14. Feb 1, 2010 at 8:14 AM
    #14
    kjf216

    kjf216 Fitz

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    i have gotten as high as 23.5 mpg all highway but i have never done a full tank averaging above 19.5 - 20. right now im averaging about 14/15 mpg, these are averages when i stay off it, i have gotten around 11 when im having a little too much fun. so its really comes down to where u live and how u drive
     
  15. Feb 1, 2010 at 8:53 AM
    #15
    Evil Monkey

    Evil Monkey There's an evil monkey in my truck

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    http://www.epa.gov/fueleconomy/
     
  16. Feb 1, 2010 at 8:55 AM
    #16
    Evil Monkey

    Evil Monkey There's an evil monkey in my truck

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    Actually that's the old test. It was revised in 2008 (the date on your article is 2006).
    EPA has finalized new methods used to determine the City and Highway miles per gallon (MPG) estimates that appear on the window stickers of new cars and trucks. Beginning with 2008 models, all fuel economy estimates are based on these new methods. Although no single test can ever account for the wide variety of driving conditions and styles, the new methods will bring the MPG estimates closer to the fuel economy consumers actually achieve on the road by taking into account conditions such as higher speeds, aggressive driving, cold temperature operation and use of air conditioning. The new estimates will give drivers a more accurate estimate of the fuel economy they are likely to achieve on the road. Because of the new methods, the estimates for most 2008 models will be lower than their 2007 counterparts.
     
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