You use the octane recommended by the manufacturer. Fit uses 87 and that's all you need. You won't get any MPG benefit from higher octane. Higher octane in a car not requiring it can actually create higher crabon buidups in the engine over time.

The detergent content in all grades is the same.

 

With the manual sport I got 35 on our first tank (filled by dealership so I'm sure it wasn't really full) and on the second tank got 37. This was about 60% city driving, no cruise, and A/C on about 1/4 of the time.

Not too shabby!

 

I've got the sport with the manual tranmission and I got 37 mpg on the second tank. About 60% city driving and the A/C on about 1/4 of the time.

Not too shabby.

 

Yeah the fun factor has been getting to me.. keep stepping on the gas.. *not good for the mileage factor but FUN* My mileage did go down a bit on the last tank just cause well I was doing the FUN thing laugh..

The county cop did have a good laugh when I pulled into one of the espresson / store places and left the window down, armed it came out and just did the pop the door lock, and then had to figure out what pocket my keys were in to shut it off.. He had seen me pull in knew I had turned it on.. plus been doing a lot of up hill stuff.. I haven't QUITE gotten up the nerve to see what it will do in snow yet but.. I know the mileage is going to be a lot less on this tank.

 

Around town, driving with 5% freeway,manual fit, I acheived 28 mpg with US gallons. I am not very pleased. I like it to stay above 33. The fit is a great little car.

 

Second tank - having a little more fun => 33.0 mpg

Not bad!

(manual sport)

 

Now that she's broken in I have been having bunches of fun and just got 35.72 mpg. Gotta luv it. Seems I get better mileage having fun than babying the girl.


By the way what brand of gas are you using. My lowest MPG was 32.5 using Chevron, The last fill was Mobil.

 

I'm going to see if I can make a run to whidbey island in the next couple of weeks.. will see how it goes on mileage then..

 

I will wave to you from over here in Port Townsend

 

driven 220 miles (85% city )I got 36.66 mpg. It makes me think I got ripped off at the pump because, ten gallons ago I scored 28 mpg. I have a fit manual

 

after the last fill with 90% stop and go/city driving it was 36.10.

 

With the low-fuel lamp activating at 8.7 gallons used, there's a lot of room for mpg variance by using the pump numbers for a single fill. By pulling the trigger once more, I've seen up to 0.3 gallons more go in.

In the worst case, there is about +/- 2.3 mpg variance possible, if you work the numbers.

So, your mileage may have been like 34.3 and 30.3 instead (first pump stopped early, second pump filled up the neck more.) With a tank this small and large mpg, only thing to do is keep a log and compute the average over 3-4 tanks.

 

After 3300km I'm averaging at 36.505. Not bad, as my foot is a little heavier now.

 

I just returned from a 600 mile hwy trip. Mostly 80 - 90 mph, with several excursions to 110 mph. Results: Tank #1 27 mpg, #2 31 mpg average. Not bad for an MT. And no tickets. Rained the entire trip. This car really sticks in the wet!
I know, all you do-gooders will scold me but thats what happens when you take drivers ed in Germany Besides, it was very light traffic.

 

My second tank was 33 (1 less than my initial 34) but I drove WAY more aggressive. when i got my 34 i barely reached the 600 mile break in, and i drove like a grandma its first 1/2 tank. I have 900+ miles now.

 

First full tank rode out to about 300miles so roughly 30mpg. The next tank only got to about 265!! Mostly city driving in a base MT, but I still expected a little better. I'm not driving in rush hour traffic just random traffic and highway but still I expected better and am hoping it improves.

 

Third tank was 38 mpg flat, manual transmission, all city driving. I am very pleased!

 

I am really trying to figure out why you guys are getting low mileage.. even on the tank where i was doing 90% stop and go I got 36.1 mpg.

 

Maybe some areas haven't switched over to summer gas blends yet? It seems that the average is around 35 or 36mpg (US gal), which is right in line with Car and Driver's 1000-mile drive (they got 36 average with varied conditions).

 

Everytime I see someone else with sub-30mph economy, their location is CA.