any calculations for liters/kiloneters for MT anyone? Mine says 8.5/100 Liters. Have a bit over 350 km on it, all city driving.

 

To go from our L/100 km to US MPG, just divide 235.2 by your L/100 km. So for the above mileage of 8.5 L/100 km, you'd get 235.2/8.5 = 27.7 US MPG.

So far with my Sport automatic I'm averaging (in 1 week) about 6.4 L/100 km calculated. My car computer says 5.8 L/100 km so it's about 10% too optomistic. So in US MPG, I'm averaging 36.8 (I'd say 75% highway, 25% city).

 

Hey CanGirl!

Yeah, most of the time and looking at all the mpg reports here, it seems like the computer is consistently about 4 mpg higher than manually calculated.

But it looks like your getting outstanding mpg figures so far.

 

Yeah, my Pumpkin looks great and is getting great mileage to boot (and just at 1 week). Too bad I'm not actually driving it right now....

 

I am getting about 39 mpg on the computer through the first 3 tanks. Manual calc tells me more like 36 mpg. 70% hwy @ 70mph. I don't stomp the pedal much but I have a few times.

 

1st tank... 38.0 mpg 453 miles... 11.9 gl
2nd tank... 39.0 mpg 436 miles... 11.2 gl

Hand Calculated...

42.4 & 43.9 respectively on the... "Bullsh*t-O-Meter"

09 At sport / navi..... 80/20 hwy

 

I just got a scangaugeII and hopefully that will help get a more accurate mpg but so far I got a 37.5mpg on my previous tank and the gauge read 41.2mpg so it was off by a lot. I'll report back with some scangauge results by the end of the week.

 

Mileage Report__2009 Sport Auto With Navi.


Tank No. _______________ Second tank
Fuel ___________________87 oct. BP
Where _________________North Central Florida
Terrain _________________Flat, more or less
Elevation _______________100ft +/-
Tire Pressure ____________44lb cold
Ambient Temperature _____ Day-80 to 90 deg. +, Night 70/80 deg.
Driving Style ____________Conservative
Passengers/cargo__________(Driver-150lb + passengers/cargo) 300lb Average
Usage __________________City-20%, Hwy. 80%(90% rural; 45-60, 10% Above 60)
A.C. ___________________50% use
Transmission ____________100% in (D), no use of (S) at this time
Total Mileage ____________751 miles
Miles this tank ____________321.7 miles
Gallons used _____________8.784
M.P.G. By calculation ______36.62
M.P.G. Shown on Dash_____40.9 !!! that's 11% dif. First tank showed 18% dif. Maby it's learning?


(I realize this report is somewhat verbose but all data shown is relative for comparative purposes)

 

Fit AT Sport 2008 Owner - I am thrilled to read these reports for the 09. About 4 months ago I decided to drive slower and not race to the red light as i noticed that slower people were catching up. Anyways, one thing that has helped me get better gas mileage is keep the RMPs below 2k. At 55mph, the RPMs will stay at 2. For my commute, it helps because my speed limit is 45mph so i stay at 50mph most of the time except for stop and go traffic for 10 mins due to traffic lights. I idle as little as possible if I get stock at the red light, if i need to step on it I'll do it slowly to go with the flow to stay sync with the traffic lights. RPMs at 2.5 you still get ok gas mileage. Stepping on it you get into the high 20s....like 27-29.

2 thumbs up if you are able to keep RPMs under 2k!

 

Yup, to be accurate calculate BY HAND! The dash indicator for fuel mileage is, by all indications, at least 10% off so is not reliable. I'll keep track of hand calculations vs. average mileage indicated in the car to see if this "improves" over time. Somehow I seriously doubt it....

 

I'm still not convinced that the computer is the one that's inaccurate. I've been getting significantly varying mileage from my cars doing the same driving between fill ups and the only thing I can attribute the big mpg spread to is the cutoff point from the gas nozzle. I think the tank gets more fuel sometimes than other fill ups. The pump meter may also be lying.

Regardless, we all know we're getting great mileage either way and having fun doing it.

 

We should just call it the "BSM".

I guess Honda just assume people are too laze to do the actual calculation.

 

One way to somewhat fix the fuel pump inaccuracy is to fill up at that same pump so you are using the same nozzle and most likely the same cut off point.

 

ok U got my vote! Let's make it official! The average mpg gauge on the 09 honda fit due to its amazing and consistant accuracy is now and for evermore to be referred to as... the "BSM"!

 

My wife and I drove to our daughters house today, about 160 miles round trip. My wifes 06 ex4 Accord will get 32 mpg going there and my 06 crv will get 30 mpg. So we took the new 09 sports AT today, filled it to the TOP at $3.17 a gal [nice]. Tires at 40 psi 90% interstate. I never go over 65 mph, no stops, flat ground. When we got back home I filled it back up to the TOP and got just over 41 mpg. I love this little sucker.

 

09 Base 5-Speed MT
Los Angeles in Southern California
36 MPG(monitor) or 34 MPG (manual calc) city/highway combined with A/C on

 

My little Aussie Jazz gets about 5.2ltr/100 so whats that, ehh roughly 45mpg for you guys. Its the sports model variant of your Fit in the states called a VTi-S, same 1.5lt engine, 5 speed auto. Using 98 Octane gas and using a Mugen drop-in free flowing air filter.

Took a pic of the read-out on the dash.



Thats driving around town between 50 / 60 kmh so 30 /37 miles respectfully.

 

I concurs with the above, the computer seems optimistic. However, in reality, it stops calculating when you come to a complete stop. So the difference may well be the consumption used when you idling at a stop.
Someone should try to turn off the engine at every stop and report back. I'm too lazy for that, plus it interrupts my music!!

 

Well I finally got my first scangauge result and it seems that it is only off by 1mpg but I think the recalibration of the fuel tank fill up will make this even more accurate. As for the results at the pump the car avg read 35.9mpg, scangauge read 31 mpg, and hand calculated was 32.1mpg so the scangauge is definitely more accurate and with the ability to calibrate makes it better. As for the 32mpg, that was 70% fwy at fast speeds

 

I've got 3200 miles on my 09 Sport already. My mileage has been about 32mpg average with a lot of city driving and hills, but the car has been consistently reporting about 4mpg too high. This weekend was the biggest disparity: 299.6 miles, 9.1 gallons of gas, which comes to 32.9mpg. The car reported 39.0!