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Hyundai Sonata Hybrid--Real World MPG

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  • kalliekallie Posts: 2

    The difference between reported savings and actual experience is sort of sad. But it's probably similar on the gas-guzzling side, too.

  • I have had my sonata hybrid a little over a week, but my mpg experience has been quite good. In Interstate driving I am getting a little better than 40mpg per the onboard computer. In city driving it does somewhat better.The gas gauge seems to correlate to the computer, so I am fairly confident in these numbers. I am highly pleased!
  • PF_FlyerPF_Flyer Pennsylvania Furnace, PAPosts: 7,168
    bobbo12 said:

    I have had my sonata hybrid a little over a week, but my mpg experience has been quite good. In Interstate driving I am getting a little better than 40mpg per the onboard computer. In city driving it does somewhat better.The gas gauge seems to correlate to the computer, so I am fairly confident in these numbers. I am highly pleased!

    Just need to double check those gauges by doing the calculation when you fill up. The onboard computers are handy, but I always feel more sure about their accuracy by filling up, driving most of the tank, filling up again and dividing the miles travelled by gallons at the last fillup.

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  • oceang2oceang2 Posts: 40
    edited October 2014
    GAS MILEAGE CONCERN-
    Hi folks. I'm new to the hybrid. I just bought my 2014 HSH last Thursday. I love it but I'm concerned about something I didn't recognize a few days ago. Friends.....Please advise me.

    For the 1st couple days, I was getting amazing gas mileage and then after about 225 miles I recognized something strange. When I would accelerate from a traffic light or up an on ramp, the mpg gauge in the center of the dash would go all the way down to 5-10 mph. Also, the EV gauge on the far left shoots up during this moment almost to the red and then returns like its supposed to.

    Quite often over the past couple days, when I would accelerate with the gas pedal even during normal driving ( not coming from a stopped position), the mpg gauge would constantly go under 25 mph to around 10-15 mph and then go back up after I release the gas a little.

    When I'm level and at a set speed the gauges seem to act as expected. Yes, when I coast, the car gets great gas mileage. Question- Is this supposed to react like this and go all the way down on the center gauge and almost up to the red on the left side of the dash?

    Please help advise me as I'm concerned that there may be something wrong already. Thanks.
    I sincerely hope not.
  • PF_FlyerPF_Flyer Pennsylvania Furnace, PAPosts: 7,168
    oceang2 said:


    Please help advise me as I'm concerned that there may be something wrong already. Thanks.
    I sincerely hope not.

    It doesn't really sound like anything is wrong. The mpg number that you see going lower is the instantaneous mileage number. That DOES go down when you step harder on the gas. Doesn't matter if you're accelerating from a dead stop or accelerating while you're already moving. You're using gas faster while you're accelerating. Don't get hung up on the instantaneous mileage number. For one thing, it's not safe to drive while trying to pay attention to that. My newest car is the first I've had with computer mpg readouts. The average mileage readout is a much more useful number. I use the overall mileage performance as a gauge of the "health" of my vehicles. Any sudden or large change in mileage MIGHT be a sign that something is going on. Most times it turns out to be a not quite the same fill up level, but once in a while it might not be.

    But again, it sounds like things are working normally for you. Don't drive yourself crazy by "chasing the needle" :)

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  • oceang2oceang2 Posts: 40
    Thanks
  • PF_FlyerPF_Flyer Pennsylvania Furnace, PAPosts: 7,168
    oceang2 said:

    Thanks

    Keep us posted on how things go for you. Coming into the cold weather season so we'll all be taking a bit of a mileage hit soon enough!

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  • Hey. Here we are 7 weeks with the hybrid and a lot of driving. ( I do drive a lot ). 4400 miles on the car now so it should be broken in as they say. I still have the gas mileage concern. The on board computer is consistent with higher readings although my actual mpg is averaging around 32 mpg. This number is based on the old reliable math after 10 fill ups from the pump. The check engine light lit up 2x recently and it went off after I turned the car off. Stayed off after the car was started again.
    I have a 450 mile trip starting tomorrow but I'm taking it in to the dealer to get checked out 1st thing in the morning. I'll keep you posted.
  • PF_FlyerPF_Flyer Pennsylvania Furnace, PAPosts: 7,168
    My latest vehicle (2014 Versa Note) is my first with a dashboard instantaneous/average mileage display and the avg number is about as close to calculated-at-fillup as it can be.

    Since you're in a new vehicle, I have to assume that we're not looking at a different tire size affecting the computer calculation, or that you're running with under-inflated tires, things like that.

    How much difference is there between your calculations and the dash reading? And i assume you reset the avg mpg readout when you filled up.

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  • mbp2112mbp2112 Posts: 2
    It's been just about a year since I took delivery of my 2015 Sonata Hybrid... I usually get between 32-34 MPG, based on calculating fuel fill volume vs. trip odometer - the on-board average MPG is usually around 2 MPG high, for whatever reason. Winter fuel blends will definitely knock down mileage a couple of MPG, as well as having to run the engine to provide heat for the climate control system.

    I drive in and out of Boston every day, so I'm loving the mileage, and the car in general hasn't put a wheel wrong since I bought it. The car is as comfortable as my 15 MPG Grand Marquis was, but gets mileage as good as the little Toyota Corolla penalty-box I drove before the Mercury. Heading to sub-zero Montreal this weekend, I'll be curious to see if there's any impact on performance or mileage.
  • PF_FlyerPF_Flyer Pennsylvania Furnace, PAPosts: 7,168
    Yea, those winter time mileage hits are kind of unavoidable on every car. Heck, it got so cold and windy here today that my car is acting like a frozen lump. ;)

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  • We bought the 2015 Sport and couldn't be more pleased. I wanted to compare cruise vs manual on a 50 mile trip and the results were shocking. Using cruise, it showed 38mpg but on the return trip without cruise, a whopping 48mpg!!! This was open traffic with no backups with 6 miles were city driving. Fillups range from 36-40mpg so figure 38mpg average.
  • PF_FlyerPF_Flyer Pennsylvania Furnace, PAPosts: 7,168
    Any other factors? Uphill one way? Prevailing winds?

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  • c_spongc_spong Posts: 1
    I have a 2015 Sonata Hbyrid that got horrible gas mileage for the first year. Hyundai did a "certified" drive test and got 98 mpg. They closed the case but we later settled for an amount that will more than pay for the extra gas. Just never give up when they say no.
    I have since found a way to fix the problem. I noticed that when I filled the tank, I got great gas mileage for about a 100 miles or so, then it started sinking. Now is just reset the dashboard system when it start to drop and it immediately goes up to around 45 mpg for a while. I'm now finding that the need to reset is getting fewer and fewer and last month made it through the month with no resets and got 39 mph.
  • nursedocnursedoc WA StatePosts: 2
    Couldn't be happier! Just bought the Black Friday special closeout of the 2016 Sonata Hybrid SE (base model) and after all discounts and credits, the price was about $17,500! Out the door with T&L and a couple dealer fees of total $20,300. In my first 500 miles I'm getting real world just over 40 MPG with mixed town and highway. The mileage seems to be best at regular highway speed of 60mph that I run, over the city driving. My earlier thoughts of buying an all electric were vanquished when I saw the price I could get this hybrid for and when I fill the tank, I have over 600 miles range! Really liked the limited version I previously test drove, but the extras weren't worth the extra $7-8,000 to me. Better to pay cash and own it rather than make payments and have an expensive car that depreciates. At least that is my thought this time. See what happens in 5-6 years when I'm ready for the next one.
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