Sonata gas mileage

Discussion in 'Hyundai Sonata' started by FerdyPooh, Aug 15, 2004.

  1. FerdyPooh

    FerdyPooh Guest

    You know, I just had to throw in a comment here about mileage after reading
    a couple of posts saying 2003-4 2.7L V6's getting over 30 mpg hwy.

    Those folks who are doing over 30mpg with this engine are either not
    calculating their mileage properly, or are driving 50mph over FLAT
    INTERSTATE w/cruise control and NO A/C running AND not stopping for any
    reason for 300 miles straight.

    The best I've EVER gotten with my 2004 V6 Sonata GLS was 27.5----and that
    was with "normal" interstate driving of 65-75mph-with A/C running with rest
    stops ever 100 miles or so-----
     
    FerdyPooh, Aug 15, 2004
    #1
  2. FerdyPooh

    Jason Guest

    Yeah, that sounds about right. When my GF drives my Sonata on the
    highway she gets about 27 MPG. When I drive it on the highway I get
    about 24-25 MPG (I drive between 70-80 MPH and pass occasionally, she
    between 65-75 MPH). Her city mileage is about 22 MPG, mine is more
    like 18-19 MPH.
     
    Jason, Aug 15, 2004
    #2
  3. FerdyPooh

    FerdyPooh Guest

    I think a fifth gear or lower gearing on the overdrive would probably help
    out a lot----2600 RPM @ 70 mph is too much-----a fifth gear, like my
    Explorer, would prolly bring it down to around 2200 or so, and improve
    mileage----
     
    FerdyPooh, Aug 15, 2004
    #3
  4. FerdyPooh

    Bob Guest

    yep. I get 17-18 mpg city, LOW 20's highway. (2004 2.7l V6 with only
    1800 miles on the odometer). Hope it gets a little better after it's
    fully broken in. My big Ford Explorer (4 liter V6)gets almost the same MPG.
     
    Bob, Aug 15, 2004
    #4
  5. FerdyPooh

    Bob Guest

    yep. I get 17-18 mpg city, LOW 20's highway. (2004 2.7l V6 with only
    1800 miles on the odometer). Hope it gets a little better after it's
    fully broken in. My big Ford Explorer (4 liter V6)gets almost the same MPG.
     
    Bob, Aug 15, 2004
    #5
  6. FerdyPooh

    Jon W. Guest

    Wrong, I went 75 miles per hour on average, with rest stops, with AC
    on and got well over 30 MPG. Sure, it was mostly flat, and I did use
    the cruise. This even takes into account a 30 mile stretch of
    construction where the traffic was stop and go. I probably averaged 55
    to 70 MPH in that stretch.

    J.W.
     
    Jon W., Aug 15, 2004
    #6
  7. According to http://www.fueleconomy.gov/feg/driveHabits.shtml, driving at 75
    mph vs 60 mph makes a difference of about 5 mpg. It looks like driving just
    a few mph slower than you are now should make up the discrepancy you're
    seeing.

    Chris
     
    Christopher Wong, Aug 15, 2004
    #7
  8. FerdyPooh

    Jon W. Guest

    You're not just talking about a "few" miles per hour, you're talking
    about 15 miles per hour. On the stretch of I-94 I was driving, I would
    have been blown off the road as most drivers were going 80 to 85 MPH.
    That's the stretch from metro Detroit, west, across the state.

    J.W.
     
    Jon W., Aug 16, 2004
    #8
  9. FerdyPooh

    hyundaitech Guest

    Wow. That's great for the Explorer. My dad's 4.0 4wd Aerostar gets about
    15.
     
    hyundaitech, Aug 17, 2004
    #9
  10. FerdyPooh

    hyundaitech Guest

    According to the site, every 5mph is like paying $.10 extra per gallon. At
    $.10 per gallon extra, that would be about a 5% drop in fuel economy per
    5mph. You'd be talking 3-5 mpg on most cars for a 15 mph difference in
    speed.

    I also don't know when these figures were last revised. In my 1979
    Fairmont, that was about right. But in my 1990/1002 Tauruses, there's no
    noticeable mpg change between 55, 65, and 80 mph. I think new
    transmission technologies and more aerodynamic cars play a large role in
    this fuel economy at higher speeds.
     
    hyundaitech, Aug 17, 2004
    #10
  11. FerdyPooh

    Jon W. Guest


    This makes no sense to me at all. My father in law has a motor home
    that only gets 10 MPG. That's with him going 55 MPH. You're trying to
    say if he went 15 MPH faster, his mileage would drop 15%? to 8.5 MPG?
    I'm not even sure how you can say " You'd be talking 3-5 mpg on most
    cars for a 15 mph difference" It all depends on how many MPG a car
    gets.

    J.W.
     
    Jon W., Aug 17, 2004
    #11
  12. FerdyPooh

    hyundaitech Guest

    Agreed. The kooky way the federal government related the difference is
    already a big part of the problem. I was simply trying to put out a
    general range based on their info that would cover the most common
    passenger vehicles. To say an additional $.10 per gallon introduces more
    error into this calculation than is already there because now it has to
    change based on current gas prices. This computation method is really
    ridiculous, if you ask me.
     
    hyundaitech, Aug 17, 2004
    #12
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