Ok, this isn't the average for an entire tank but it is an average over 70 miles according to my scanguage. It was on a trip home from Virginia on route 81 which is mostly flat and strait with some hills. I stopped for gas along the way and when I got back on the highway the scanguage started telling me I was getting around 55-60 mpg. By the time I got home I had gone about 70 miles and the scanguage reports I had used 1.2 gallons of gas along with a driving average of 57 mpg. I was cruise controlling at 80 mph for the vast majority of those 70 miles.

I've been driving for a couple of days now around town and have been getting my usual 32ish mpg on that same tank of gas. So it doesn't look like it was a crazy scanguage fluke. I'll have to wait for my next fillup to be absolutely sure, but the scanguage is telling me the tank average is still at 45 mpg.

This is exciting for me.

 

I find it 100% impossible to even get 40mpg when going 80mph or even 70.
Check your scan gauge.....

Best of class according to cleanmpg is 46

 

yeah im sorry but i dont believe u got 57 mpg let only 40 at 80 mph..considering your RPMs should be at like 4kish at that speed

 

what the heck is a scanguage? gauge tell how much fuel in the tank? yeah I'm assuming what makes the fit less effecient are the stoping mechanisms (abs, other such) and the apparently thirsty tranmission. Engines are always more effiecient at full throtle, only problem is that it's not too safe keep it there! thanks for the post

 

scanguage is pretty much just a computer that allows you to fuel economy, fuel rate, coolant temp, air intake temp, engine speed, vehicle speed, etc. Its pretty much just a guage that any car has but a bit more.

 

It may be possible with a 40-90mph wind pushing you along!

Tyler

 

Not true

 

and you'd have to be drafting behind a big semi truck too

 

The speed limit between Lincoln and Omaha is set at 75 with a little variation for construction, i tend to drive between 77-83 mph and my tach reads 3200 rpm tops. I make this drive to and from Omaha 5 days a week so i don't know how accurate the scanguage but the 4000 rpms is way off.

 

the 4k RPM thing i stated was just an exaggeration but my emphasis was that the RPMs would still be to high to be pushing 50+ MPG like tricky is trying to state.

 

+1

57 MPG is possible, but not at that speed - and for the aforementioned reasons.

 

RPMs were at 3200 like Biven said. I don't know what to tell you other than my Scangauge might have been confused. I'm just telling you what the numbers it was giving me were. I have gotten 47 mpg by dividing miles traveled by gallons at fill up before on a trip to Michigan and that was before I had the Scangauge so I know the Fit is capable of ridiculous mileage. I can definitely say that going over 80 causes a drop in my mileage but the faster I go up to 80 the better it is. I think V-tec engages at over 3200 RPM and thats what makes the mileage suck. So the faster I go go under 3200 the better. I'm looking forward to the return trip this weekend to see if the Scangauge had a hiccup or if the Fit was feeling good.

I will take a picture with my phone if it shows anything dubious again so you all can see.

 

What part of VA? 81 is far from flat.

 

Drafting off a semi can inprove your MPG, 10 feet away you get a 40% incress. I think its 30% or so if your the "safe" distence away.

 

it was in MD and PA, cuz it was the last leg of the trip. The VA part is terribly hilly.

 

i don't know how the scangauge works but is there an avg. setting and a real time setting. because my grandmothers lincoln will say like 63mpg sometimes if you let off the gas and coast for a little while. so you might have it on a different setting.

 

Pa is all hills. i know cause I travel about 120miles a day on 81

 

what part of PA's 81 is all hills? not near MD, its flat all the way to harrisburg at least

 

Well you could always top off your tank to see how much fuel you used.

 

Fill the tank up and do the mileage/gallons used calculation and then let us know, don't go by what a scangauge tells you. Best I've got is 43 and that was really nursing it so 57 I'm a little skeptical