Originally Posted by rhyneba (Post 778124)

There is an update to the PCM to correct the computed fuel economy. I don't have the bulletin number right now but I can look it up later. I'm a service advisor at a Honda dealer, the bulletin said the computer is using a wrong data set to compute the figure, it's off by 10%, I think it said. The update is covered under warranty until 8/80.

Originally Posted by rhyneba (Post 778131)

I'm not sure about Canadian models but would expect there would be eventually if not already. The bulletin number is 09-086 and applies to all 2009 USDM Fits. How does one post files? I downloaded the pdf. 8/80 is the US federal emissions warranty of 8 years or 80,000 miles, whichever occurs first.

Originally Posted by rhyneba (Post 778186)

Download Fit MPG.pdf from Sendspace.com - send big files the easy way

Done, thanks for the resource.

Originally Posted by Selden (Post 778199)

Thanks for pointing out Sendspace.com -- I've been looking for something like this.

Originally Posted by skydiverman (Post 753567)

Maybe i got a one off or something, but it just seems to me that the epa numbers for the fit HAVE to be sandbagged. Reading other forums I see that civic owners get 28-34 in a car rated for up to 36 mpg, but in the fit rated for 33mpg, I cant get lower than 37. Could it be that honda sandbagged it to avoid cutting into the civic sales where they make more profit?

so far driving conservatively i've gotten
39.86
39.7
41.2
39.5
thats using the miles driven divided by the gallons inserted - the guage is off in lala land, thats a whole 'nother topic.

I drove as HARD as I could given the traffic patterns, hot rodding around for an entire tank, jack rabbit starting at every light. net result;

37mpg.

wtf.

how on earth could this car be rated at 33?

Is anyone actually getting that low a MPG in a fit sport manual?

Originally Posted by Shockwave199 (Post 779306)

I think a lot of people will be surprised after getting this fix. Highway is one thing, where you at least have a shot at getting some great mileage. But city, there's almost nothing you can do. 27- 28 mpg, is all you can realize, ime. Maybe you can squeeze out 29, maybe. I drive normally, not heavy foot. That's right at EPA, so no foul there. But anyone getting much more than that city is either relying on a mpg faulty gauge, driving extremely slow [which doesn't guarantee better mileage] or just not being truthful. Highway mpg's, all bets are off. There you can really do well. I'm very pleased with my city mileage the way it stands. I gas up every two weeks. That's a beautiful thing compared to what I was doing before.

Dan

Originally Posted by Steve244 (Post 779236)

I think, reading between the lines, Honda wants to make sure you understand the car is actually getting lower mpg than the display shows before they alter its logic. If you have to tell them anything more than, "yeah, I manually calculated mpg and the display is consistently high by 4mpg" I'd be surprised.

I can imagine the complaints from customers dumb and happy they're getting 40mpg to drive out after a "tune up" and see they're only getting 34MPG!

Originally Posted by Shockwave199 (Post 779409)

Yeah. It's really the stop and go that kills it mostly. I have one hill leaving work, but that's it. It's the constant acceleration from stop [stop signs/lights] that works against you in a hurry and keeps you down. If you can maintain speed, even a fast speed, steady, you're fuel consumption immediately improves- and the gauge will tick 'up' in your favor.

Dan