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Hatchbacks Honda Fit Honda Fit Real World MPG
2432 messages, Last post on Oct 29, 2009 at 4:50 AM
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Replying to: bobw3 (Sep 23, 2008 2:01 pm)  My best friend has 196k miles on his '97 Maxima GXE. I have 184k on my '96 Accord LX. We are on original transmissions, but have both had some repairs (me - radiator, brake master cylinder, cooling fan motor; him - alternator, and now his car is taking a good 5 seconds of cranking to start). For this many miles, though, nobody is complaining. These two car companies have changed a lot in ten years, so I don't know that this means anything.
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Took delivery on a 2009 Fit Sport Manual. In my first fuel economy run, the mpg meter displayed 48.9 mpg for roughly 50 miles, but, using tried-and-true fill-up to the top, write down the fuel consumption divide into the trip miles, I got 36.9. One run of over 150 miles registered 42.2 mpg but actually delivered about 28. I proceeded to verify the accuracy of the odometer (NO discernible error in 10 miles of surveyed freeway mileage). In a final trial, over 50 miles the meter read 50.2mpg but, in fact delivered 37.9. I took these facts to my dealer, booked an appointment with the service department and was rewarded with blank stares. Of course, the service guys said that there was no discernible problem and that, somehow, this anomaly was due to the car not being "broken in," and would improve or go away after 1500 miles. Also, they said that measuring fuel mileage was not an exact science and that my expectations were too high for the meters' accuracy. As an engineer, I am baffled as to how an mpg meter can possibly profit from learning my driving habits over 1500 miles. If it doesn't actually measure fuel consumption, what does it measure and what is the correlation? If it does measure fuel consumption, then why would its accuracy improve over time? Even as a rough estimate, a meter that exhibits 25% or more of error either has a design flaw or is broken (mis-adjusted). I called Honda Customer Care, but, though they were unable to tell me how the meter worked or why it might "get better" after 1500 miles, they stuck to the party line about the mysterious improving meter. There is no mention of a break-in accuracy period for the mpg meter in any of the manuals. They couldn't find anything in any of their manuals either. Anyone else experience a hugely optimistic meter in their 2009? You can bet your booties that they would be all over this problem if their meter was 25% pessimistic!
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Replying to: pmeyers (Sep 24, 2008 12:58 pm) 1st fill 192 miles, 4.98g = 38.55mpg, Computer said 43.2. 4.65 discrepancy 2nd fill 244 miles, 7.38g = 33mpg. Computer said 38.1. 5.1 discrepancy 3rd fill 308 miles, 8.86g = 34.8mpg. Computer said 37.4 2.6 discrepancy I too am perplexed by the computer discrepency but I'm not seeing 10mgp difference. I wonder if the fact the you're filling after on 50 miles has some impact on this. My wife, who doesn't fret about these things as much, say's the computer will get better over time. I can't understand why it would change but that doesn't mean in won't. My previous vehicle-a Dodge- computer was within 1-2mpg. 5-10 or more seems like a lot, no matter how it measures. |
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Replying to: thegraduate (Sep 24, 2008 6:15 am) BTW...my last manually calculated MPG for my '07 Sport Auto was 36.2mpg mosly highway with suburb driving. I've found (like most cars) that keeping the speed 65mph or less on the highway as compared to driving between 65-70 mph improves my MPG by 2-3mpg in my mixed highway/suburb driving. |
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2009 Honda Fit Sport with VSA/NAV in Wisconsin. Just finished off my first tank of gas and at the nine gallon mark (when the fuel light went on) I averaged 40.8 miles per gallon. No driving in inclement weather thus far. Mostly highway and I have not taken it above 67mph on the freeway.
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Replying to: kalvord (Sep 29, 2008 7:21 pm)
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I hope that I am not repeating an old post (I didn't find anything on this after a brief search). I have a 2009 Honda Fit Sport (automatic). The average mpg read-out on it this last cycle read around 43mpg but when I calculated it myself based on the miles driven and the gas used it seemed closer to 38mpg. Has anyone else experienced anything like this? Perhaps there is something I am not taking into consideration when I do my own calculations but I had my husband check it as well and he got the same thing. Thanks! 
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Replying to: fithopeful (Oct 07, 2008 5:45 am) I guess we'll have to see if this reconciles itself in 650 miles when I hit the magic 1,500 mark. It's funny, if the meter didn't exist, I'd be happy pulling 33 in mixed conditions... Now I just feel like I'm getting jipped.
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Replying to: jdfury (Oct 07, 2008 6:34 am) The speed limit is 65mph, so by staying at 60mph, I just stay pretty much in the right lane and listen to the morning news. It's more of a relaxed drive than going faster. Plus I can mostly use the cruise control pretty much the whole way to work, so the MPG improvement is not only because of the lower speed, but also because of the constant speed, vs speeding up and slowing down by passing folks all the time. It takes me a few more minutes to get to work, but my mpg went from 34 to 37. I don't do any coasting, hypermiling or any of that stuff. Just keep the speed a little lower on the highway and don't race from stoplight to stoplight. |
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