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Honda Fit Real World MPG

2432 messages,  Last post on Oct 29, 2009 at 4:50 AM

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What is this discussion about? Honda Fit, Fuel Efficiency (MPG), Hatchback

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#2398 of 2432 Re: never breaking 18 mpg in my 08 Fit! - very depressed and at wits end [bilbofett] by staticd Jul 10, 2009 (8:07 pm)
Replying to: bilbofett (Jul 10, 2009 7:09 pm) dude, you've got some serious issues...   That being said, I drive the you-know-what out of my 08 Honda Fit Sport (auto) and I get anywhere between 30-42 MPG.   Saying that, what is the difference between my car and yours?   Part of me says that you are full of it but your long post makes me think that you are sincere.   There are so many variables involved with how much fuel your car actually consumes that most likely your problem is either major (not likely) or incredibly simple.   So, you must post on this blog, your exact driving habits for someone to actually give you good advice.   That means, all of the details that you can possibly think of...including but not limited to...   -type of terrain you drive on -type of fuel you use -exact condition of your tires -air pressure on all your tires -exact percentage of highway v city -exactly how many miles do you get per gallon -how often are you merging with traffic   ...and so on   Details are important if you expect resolution; your post was mostly ranting--justified but not really results driven, if you will.
#2399 of 2432 Lemon Law may apply here. by kipk Jul 11, 2009 (2:01 am)
There just "Seems" to be something wrong with this picture.   Can't imagine how the mileage could be so bad and not be getting error codes.   First thing I would do is the Idle learn procedure (ILP). You can find that on page 11 of the Pilot "Real World Mpg" forum. Do it EXACTLY as it is written. No short cuts.   If that doesn't help, you need to become a Fixture at your dealer. Top off the tank and have a technician drive the car for a hundred miles or so and check the mileage, with you in the car. Another thing, would be to drive one of their demo Fits for a hundred miles and see what kind of mileage you get.   With legitimate mileage that bad, possibly the states "Lemon Law" would help. The car is not as "Green" as it is supposed to be, therefore not meeting EPA standards.   Kip
#2400 of 2432 Re: never breaking 18 mpg in my 08 Fit! - very depressed and at wits end [stephen987] by backy Jul 11, 2009 (7:49 am)
Replying to: stephen987 (Jul 10, 2009 7:17 pm) I think you are on to something there.   You can actually do a test yourself: find a level stretch of highway without much traffic (might be hard to do in the Bay Area, may have to travel a bit to find that). Top off the tank at a gas station that is as close as possible to an entrance to the highway. Fill the tank until the pump shuts off, and STOP. Clear out the trip odometer. Then drive as far as you can in one direction on this level highway, with the cruise set at a moderate speed--either around 55-60 mph or whatever the speed limit of the highway is (if no cruise, try to maintain a set speed with light pressure on the pedal). (As was mentioned, be sure the transmission is in the highest gear.) Then turn around and do the same thing in the opposite direction until you return to the same gas station you used before. Fill the tank at the same gas pump you used the first time, until the pump shuts off. And calculate your fuel economy for the trip (the longer the trip, the better). The mpg should be close to the EPA highway estimate for the car, at least. If the speed was around 55-60, I'd say the mpg should exceed the EPA number. If not, if instead it's closer to 18 mpg, then I'd say the car really does have some kind of problem.
#2401 of 2432 Re: never breaking 18 mpg in my 08 Fit! - very depressed and at wits end [bilbofett] by thurst1963 Jul 11, 2009 (8:06 am)
Replying to: bilbofett (Jul 10, 2009 7:09 pm) Hello I had the same thing going on with my 2008 sport auto tran fit look back at post from the first half of 2008 18 mpg all the time no cheap gas after i got around 7000 mile mpg went up i think 21-23 around 8500 mile went up around 25mpg 10000 mile 27-29 i have 15500 mile now I get 35-40 PS I drive 90% highway and have got all the way up to 48 mpg really watching on long highway trip
#2402 of 2432 Re: never breaking 18 mpg in my 08 Fit! - very depressed and at wits end [bilbofett] by xcentrick Jul 11, 2009 (10:21 am)
Replying to: bilbofett (Jul 10, 2009 7:09 pm) I have an '07 FIT Sport that got low MPG (~27) for the 1st 30K miles. Then, it seemed at exactly 30K miles, the MPG went to 33 and has stayed there. I now have 70K miles on it, no problems except had to change brakes and rotors at 30K miles. The rotors were not scored, just worn past the legal width for tuning.   Only thing I can offer is try the ILT mentioned in other posts.   The thing that really puzzles me about all the FITs is the wide range of MPG reported, from 15 to 44. That just doesn't make sense to me even with all the different factors that play into MPG. Replies to this message: madams1 (Jul 11, 2009 3:24 pm) bullfrog3 (Aug 24, 2009 12:33 pm)
#2403 of 2432 Re: never breaking 18 mpg in my 08 Fit! - very depressed and at wits end [xcentrick] by madams1 Jul 11, 2009 (3:24 pm)
Replying to: xcentrick (Jul 11, 2009 10:21 am) 18 mpg sounds awfully low. My wife initially got 28 average on her 2008 automatic sport and now she averages about 30 with about 50-50 city and highway miles. Also, this mileage includes using gas with ethonal which is about all that you can find around here. Replies to this message: bullfrog3 (Aug 24, 2009 12:33 pm)
#2404 of 2432 The MPG gauge and the real world by jarew Jul 22, 2009 (8:47 am)
48.4 mpg for my first tank of gas using on board gauge Wow or what gives? Actual from mileage to gallons used was 37.5 mpg which is still a WOW. Base model five speed manual 80/20 highway/city. love my new fit.   JAREW Replies to this message: stephen987 (Jul 22, 2009 11:11 am) roxy11 (Jul 24, 2009 2:34 am) gatortom1 (Jul 24, 2009 11:54 am)
#2405 of 2432 Re: The MPG gauge and the real world [jarew] by stephen987 Jul 22, 2009 (11:11 am)
Replying to: jarew (Jul 22, 2009 8:47 am) Nice mileage. But what's not so nice is the 25-30% error in the gauge.   I got an indicated 42.4 during a rather "aggressive" test drive session a couple of weeks ago. Even if that translates only to a real-world 34 mpg, it's still better than my Civic gets when driven comparably. Replies to this message: roxy11 (Jul 24, 2009 2:34 am) gatortom1 (Jul 24, 2009 11:54 am)
#2406 of 2432 Re: The MPG gauge and the real world [stephen987] by roxy11 Jul 24, 2009 (2:34 am)
Replying to: stephen987 (Jul 22, 2009 11:11 am) those disparities between the computer and the actual mileage are outrageous. i seen people brag about 42 mpg, but they never wonder why they are using 10 gallons of gas to fill up after a 350 mile tank. on my 09 corolla, if the dispay shows 43.4 mpg, then i consistently know that my real calculated mileage will be over 41.4 mpg. (it is always less than 2 mpg off).   i have to think honda could remedy this, but too many drivers not in the know would have to face the reality that the mileage of the fit isnt as rosy as they think.
#2407 of 2432 Re: The MPG gauge and the real world [stephen987] by gatortom1 Jul 24, 2009 (11:54 am)
Replying to: stephen987 (Jul 22, 2009 11:11 am) I'm really surprised at THAT much disparity between real mileage and computer monitor mileage. With over 90% of the posts here the difference is 10 to 12 pecent. I have kept careful records since I bought my 2009 base Fit automatic in Sept. 2008. 5040 miles with 141 gallons. (35.7 actual mpg with roughly 60% suburban/40% highway.) On each fill-up I record CPU mileage and compute real mileage. That percent difference has varied from around 9% to around 12% with a few outliers both below and above that. The difference also appears about the same whether it is a highway tank at 42 actual mpg, or a surban tank at 32 to 35 mpg. I still hit pretty close by subtracting 10% from whatever the CPU says.   Some of the disparity across reporters may be CPU versus real mileage--although I also noted before that I actually got 47.5 mpg over 280 miles on an interstate tank that involved a lot of drafting behind 18-wheelers doing 65 mile per hour.

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