FE Challenge 11 - Fall 2010

Discussion in 'The Daily Grind' started by PaleMelanesian, Sep 30, 2010.

  1. PaleMelanesian

    PaleMelanesian Beat the System Staff Member

    Presenting the Fall 2010 Challenge, running from October 1, 2010 to December 31, 2010.

    [FIMG=right]http://www.cleanmpg.com/photos/data/501/fall_color_highway.jpg[/FIMG]Andrew McGuckin - CleanMPG - October 1, 2010

    This is now the eleventh episode of our quarterly challenge to beat the EPA mileage ratings. The winner is the driver who beats the EPA by the highest percentage. The challenge will be increasingly difficult as the weather changes.

    Drive your daily routes in your normal car. Real-world cars, real-world routes, everyday conditions, etc. This is where the real results prove the value of hypermiling. Remember the CleanMPG motto, "Learn to raise fuel economy and lower emissions in whatever you drive".

    Results from previous economy runs:
    I: February - May 2008. Winner: PaleMelanesian
    II: June - August, 2008. Winners: CobraPond (A), lamebums (B)
    III: Sept - Nov 2008. Winners: CobraPond (A), MT bucket (B), jps000 (C)
    IV: Dec 2008 - Feb 2009. Winners: lnmcmahan (A), GaryG (B), jhu (C)
    V: March - May 2009. Winners: lnmcmahan (A), nissynis (B), Damionk (C)
    VI: June - Sept 2009. Winners: cpeter38, froggman, Taliesin, Kacey Green (marathon)
    VII: Oct - Dec 2009. Winners: cpeter38 (A), Swineone (B, Marathon), some_other_dave (C)
    VIII: Winners: GaryG (A), Sulfuric (B), jimepting (C, highest mpg), tpmjr2004 (Marathon), Right Lane Cruiser (Winter)
    IX: Winners: PaleMelanesian (A), jimepting (B), LinuxGold (C), tpmjr2004 (Marathon), Right Lane Cruiser (Highest MPG)
    X: TBA

    How to Join
    To participate in this Fuel Economy Challenge, all you have to do is the following:
    • Create a new mileage log. This will be an alter-ego of your vehicle, except make sure you use the 2008 EPA ratings for your car found at www.fueleconomy.gov. Choose the propulsion category "Quarter-Year FE Challenge". Please use a new log and leave the previous challenge logs as-is until the results are finalized. Once finalized, the previous vehicles can be deleted.
    • Post here in this thread to announce your participation. Be sure to include a link to your new mileage log.
    • Drive
    • Post in this thread with updates. No need to start with a fresh fill, just include the fills that fall within the challenge months. There is no minimum mileage or number of fillups, only a request for no single-tank entries. We want complete daily driving records, not cherry-picked entries.
    • Entries will be accepted for one month, after which the participation list will be final.
    • Report your final fill within 7 days past the end of the challenge.
    The standings here on page 1 will be updated periodically (by CleanMPG staff members).

    For a level playing field, we will all use the new revised EPA estimates for fuel economy. If you are using a handicap, please list it when you announce your participation.

    • Hybrid Handicap: Reduce your epa ratings by multiplying by 0.85. Hybrids are already optimized for good mileage by automatically doing many of the things hypermilers do.
    • E10 Handicap: Reduce your epa ratings by 3%, to match the reduced BTU of 10% ethanol.
    • Part-time E10: If you only sometimes use E10, log 3% less fuel used when you record that fillup. Make a note in the comments for the tank. Example: "Last fill was E10. Pumped 10 gallons, logged 9.7 gallons". Use this adjustment for the fill that finishes the tank of E10 fuel, not when you put it in.
    • E85 Handicap: If you are using E85 instead of regular gasoline and EPA ratings are not available, you can estimate your E85 rating. Just lower the gasoline numbers by 25% (multiply by 0.75) and round to the nearest MPG. Enter this as your EPA rating.

    Which Division?
    Divisions A, B and C were created to help divide people into three levels, in order to increase competitiveness.

    • If you were in the top 2 or 3 in your division, please consider moving up.
    • If you were near the bottom, consider moving down. Everything is more fun when the competition is close.
    • If are are new to hypermiling or to this challenge then I recommend either the B or C divisions to allow a good chance to get on your feet and familiarize yourself with hypermiling.

    Special class - Marathon: If you drive lots of miles (1500+ a month or so), you belong here. (in addition to Div A, B or C. Sign up for both.)
    Special class - Winter: If you have cold winter and snow, go here. You can compete against other drivers facing the same challenges.

    Official Standings
    Division A
    Driver Vehicle Handicap
    PaleMelanesian [​IMG]
    VegasDude [​IMG] E10
    groar [​IMG]
    diamondlarry [​IMG]
    2003protege [​IMG] E10

    Division B
    Driver Vehicle Handicap
    Sulfuric [​IMG]
    SentraSE-R [​IMG] Cali E6
    Mr. Pancake [​IMG] E10, Hybrid
    some_other_dave [​IMG] Cali E6
    LinuxGold [​IMG]

    Division C
    Driver Vehicle Handicap
    epurvee [​IMG]
    paulbates [​IMG] E10
    postmac [​IMG] E10
    Oainac [​IMG] E10
    lxmike [​IMG] E10

    Marathon Division (long-distance)
    Driver Vehicle Handicap
    Mr. Pancake [​IMG] E10, Hybrid

    Winter Division
    Driver Vehicle Handicap
    Mr. Pancake [​IMG] E10, Hybrid
    Oainac [​IMG] E10
    Last edited: Nov 22, 2010
  2. Oainac

    Oainac Well-Known Member

    This will be my first FE challenge so hopefully I set this up right.


    I would like to join the winter division.
    My handicap is full time E10.
  3. postmac

    postmac Member

  4. VegasDude

    VegasDude I remember you from the last light

    Div A, E-10.

  5. diamondlarry

    diamondlarry Super MPG Man/god :D

    Ok, here is my entry:

  6. Mr. Pancake

    Mr. Pancake Well-Known Member

  7. PaleMelanesian

    PaleMelanesian Beat the System Staff Member

    I'm in for A. With my new route (school dropoff in the morning), my numbers will be lower.
  8. 2003protege

    2003protege Well-Known Member

    Div. A. E10 handicap. haven't gotten in on this since '08 (read: "when gas was above $3/gal")
  9. PaleMelanesian

    PaleMelanesian Beat the System Staff Member

    Welcome back!
  10. 2003protege

    2003protege Well-Known Member

    oh, you take the 3% on the EPA ratings? I guess I'll go without a handicap, then. I tend to see the '03 EPA numbers in real-world driving anyway.
  11. 2003protege

    2003protege Well-Known Member

    and thank you! :)
  12. PaleMelanesian

    PaleMelanesian Beat the System Staff Member

    For the E10 handicap, lower your challenge car's rating by 3%. Numerous studies have shown that 10% ethanol yields about 3% less mpg.

    Ethanol has about 67% the btu content of gasoline.
    10% * 67% + 90% = 96.7% btu in E10, or 3.3% lower than straight gas.

    I agree about the pre-2008 epa ratings - they were fine and didn't need fixing. However, we have newer cars on here that only have the new ratings, so we have to use that for our older cars as well.
  13. some_other_dave

    some_other_dave Well-Known Member

    Time to promote myself to Div B! (I would have finished in the middle of the pack in B this summer, so that's not so bad.)

    Mango Bango is running the Cali E6 handicap of 2%; the numbers I entered for the city and freeway MPG are 0.98 * the numbers from fueleconomy.gov .

    Interesting. I went back to edit the vehicle, and the FE numbers had been rounded off to whole numbers again?? Very curious.

    [EDIT 2 --]
    When I used the "compare" tool at fueleconomy.gov, the MPG numbers reported for my 1.6L CRX were 24/29. When I searched for the individual ratings page, they listed 27/30! I am quite confused now. But the numbers I entered for my car are 27/30, and no 2% modification.

    Link to entry:

    I'll put the banner in my sig, so it should show up there soon. :)

    Last edited: Oct 6, 2010
  14. some_other_dave

    some_other_dave Well-Known Member

    First fill! Once again, between 47 and 48 MPG. That should put me pretty solidly in the middle of the pack in Div B.

  15. PaleMelanesian

    PaleMelanesian Beat the System Staff Member

    That is odd about the different ratings. ???

    Are you sure you don't want 26/29 or 26/30 or 27/29? Mess with it however you like.
  16. Mr. Pancake

    Mr. Pancake Well-Known Member

    Welcome to division B, you probably have a good chance against me: it has cooled down quite a bit here and I'm going on vacation at the end of the month (lots of highway driving with the wife so I can't go too terribly slow).
  17. some_other_dave

    some_other_dave Well-Known Member

    Woo hoo! I'm not only leading Div B at this moment, but I am WINNING THE WHOLE CHALLENGE!

    OK, so most people haven't signed up yet, and there are only two of us so far who have entered tanks. But still, almost everyone is at 0% of EPA, and I'm at more! :)

  18. VegasDude

    VegasDude I remember you from the last light

    Time for a grille block, 65F on the drive home and the car never got up to temp. It's tough when the engine is on for 5-10 seconds at a time. I'm trying for a 48 MPG tank but the construction crews are not helping.
  19. PaleMelanesian

    PaleMelanesian Beat the System Staff Member

    I concur about the grille block. This week I re-covered the last 1/4, making it a full 100% block. My car, my routes, I can get away with that when the daily high is anything below 85 degrees.
  20. Mr. Pancake

    Mr. Pancake Well-Known Member

    First fill of the season. Last is now first and first is now last (sounds a little biblical).

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