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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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I know this has been mentioned before, but it should be restated that any report of mileage in this forum should be accompanied by what gas blend you filled your tank with, in order to have a truly useful apples-to-apples comparison of mileage results with fellow Fit owners. This is critical because ethanol has less energy content gallon for gallon than pure gasoline, so mileage will suffer the more ethanol is blended in. I used to complain that my mileage was worse than average until I realized that all regular gas in Massachusetts where I live is E10 (10% ethanol). It takes 1.53 gallons of ethanol to equal the energy of 1 gallon of gasoline. This means that if you can go 300 miles on 10 gallons of pure gas (30 mpg), you can only go about 196 miles on 10 gallons of pure ethanol, or 19.6 mpg (300 ÷ 1.53 = 196). Theoretically, since you can't put pure ethanol in a car that isn't specially designed for all-ethanol. If you were to put E10 in the same vehicle, you would go 289.6 miles: 9/10 of 300 miles is 270, plus 1/10 of 196 miles is 19.6, equals 289.6 miles. So your mileage goes from 30 mpg to just under 29, and the only difference is the fuel blend. I think most people don't even realize that their gas may have 10% ethanol blended in, since it's not disclosed in any meaningful way at filling statons because all gas engines can run with small amounts of ethanol mixed in. It's usually written in small print on the pump, next to the yellow sticker with the octane rating. At higher percentages (more than 15%) engines and fuel lines need to be modified to accommodate ethanol's corrosive effects. FYI, with 16K on my '07 Fit Sport, I average between 29-33 mpg in evenly split city/hwy driving, using E10. Editorial aside: coupled with its huge agricultural and production costs, not to mention all its government subsidies, ethanol's mileage penalty makes the whole ethanol-as-a-solution-to-our-dependence-on-foreign-oil propaganda one big crock. In my opinion. |
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| You definitely want to be a part of our The Inconvenient Truth About Ethanol discussion! | |
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Trip from SD to NY at an averaged of 36mpg. Speeds of 80mph over 750miles in SD, 75mph over 350miles in MN, 75mph over 450 miles in IA and 65-70mph the rest of the way. This on pure gasoline. The pumps were labeled "contains up to 10% ethonal" until we got to to PA so we knew what we were getting. I have found over the years my fuel mileage drops about 5% when using blended fuel which reinforces what others have said here so I avoid it on long trips. BTW-drove through 2 wet snow storms averaging about 40mph over 100 miles. We got 41mpg over 3 tanks of fuel running at the lower speeds. On A Strange Note--we filled up 3 times & got 11.4,11.7 & 11.7 gals in the tank with the low fuel light on just 1 of those times. Tank holds 10.8 per owners manual. |
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The last non-ethanol station disappeared here in September 
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Replying to: Sylvia (Apr 22, 2006 8:32 pm)
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'09 Sport Auto. Car now has just over 1000 miles on it. Now that my daughter has her license, pretty much only she drives it. This means that all driving is purely local (the hilly SF Peninsula) stop and go and because of this she probably has not exceeded 45 mph since we last filled the tank. From a MPG perspective this is probably worse than driving in Manhattan since it is flatter there. At least I hope so since she last filled the tank and reset the counter about 110 miles ago and the computer now shows 20.4 mpg. I know she does not have her foot in it since she is still getting comfortable with driving in general and remains quite cautious. Anyone else getting mileage like this in purely city driving? FWIW, we did get 38 mpg on an almost-all-freeway trip to look at colleges when the car had about 500 miles on it. Thanks, Byron
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Replying to: byron2 (Dec 01, 2008 11:35 am) When Buster and I drive our 07 Sport AT, we average over 40 mph on the highway and around 31 in the city. When our 2 granddaughters drive the car for any length of time, mileage drops to around 22 mph. That tells us something!! Regards, Bubba 
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So far my first tank has delivered a whopping 27 mpg! I'm unimpressed!  The worst part is 60% of that was highway miles. I don't really pay attention to the meter in the car I calculate it manually. But I think it said 32.something MPG. So it's obviously off. I'm really hoping that it will improve over time.
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Replying to: tiff_c (Dec 01, 2008 6:19 pm)
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Replying to: madams1 (Dec 02, 2008 10:13 am) Yes, I'm not going to cry over 27mpg while the car has less than 600 miles on it.  But I'm hoping to break over 30mpg just in town. Figure that my 2008 Civic Si was getting 28-31 combined and I figure the Fit should be able to do as well. We have to drive easy here due to all the cops monitoring the roads we live on. Lots of hills and sharp corners. A lot of fun except for the cops that are checking your speed. We had a small bit on snow maybe 2 inches and I saw a Subaru Outback twisted off the road. All seasons don't cut it on these roads. The Fit had no problem being driven normally. But 4-5 inches of unplowed snow on those hills will require snow tires. |
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