I got a new low the other day. 10.8mpg. On about a half a tank with mostly closed course driving. Also some idling time in there. It really sucks down the gas at 8000 rpm. If you keep it in the power zone 6000-8000rpm all the time it is a lot of fun to drive, but you can see the gas gauge moving!
I have the newest PCM flash by the way.

are you complaining of your gaz mileage while you are doing track driving ??? If so i have the perfect cure... get outta there !

almost reached 21 mpg on my last tank, on an open HW at 70 mph mostly and only 15% city.

And i'm happy.....

just turn the DSC off

Got 22 MPG yesterday with mostly highway driving AND medium-grade gasoline. It maybe my imagination, but after 2 tankfuls of medium grade gas I seem to be getting just a tad bit better milage. I think I also noticed a very slight drop in performance...but that does not bother me since all I am doing is back and forth to work.

only 10.8mpg on track driving? i dont think you were driving hard enough. i got like 8mpg the last time i ran track. or is that the new m flash doing its mojo? i'd really appreciate another 2mpg on track driving, that's bad ass

congratulations, sounds like your an owner of a lambo or ferrari

[QUOTE]Originally posted by f1michel
[B]are you complaining of your gaz mileage while you are doing track driving ??? If so i have the perfect cure... get outta there !

With a smiley and the word FUN in the post.......Nah
Not complaining. Just informing.
Judging from the other racers that posted I did not drive hard enough! :D

And the dcs was OFF for sure.

wow, and i thought i was bad at like 15...how do you turn the DSC off?

Originally posted by BigWorm
how do you turn the DSC off?

Are you serious?

Drove it like I stole it the other day for about the whole day, refilled, had 19pmg. zoom zoom!!

Heh, I can second RX8Bliss!
I got 8.1 mpg on my track day ...
Tried really hard :):):)

Originally posted by BigWorm
wow, and i thought i was bad at like 15...how do you turn the DSC off?

There is a button. It is covered in the owners manual.

Originally posted by Katchoo
Got 22 MPG yesterday with mostly highway driving AND medium-grade gasoline. It maybe my imagination, but after 2 tankfuls of medium grade gas I seem to be getting just a tad bit better milage. I think I also noticed a very slight drop in performance...but that does not bother me since all I am doing is back and forth to work.

its not your imagination..... a lower grade fuel will last you longer but less power, a higher grade will burn faster but more power.


when you guys say 21 mpg...

how many KMs is that in one tank?

I get 12 mpg all the time.........never any better.

Originally posted by BIU
[..]
when you guys say 21 mpg...

how many KMs is that in one tank?


21mpg = 11.2 liters/100km

Formula used:

100 / 21 * 3.7853 / 1.60934

( 1 US Gallon = 3.7853 liters
1 US mile = 1.60934 km )


For 15.3 the numbers are identical..

15.3 mpg = 15.3 liters/100 km.

8mpg? dam I thought I was killing my car at the track when I got 11

Originally posted by ptiemann
21mpg = 11.2 liters/100km...

So you guys are getting more than 500km with one tank?

The longest distance I travelled with one full tank was about 420km :confused:

The max I got was 314 miles, read light coming on at 286.

314 miles = 505 km, indeed.

Normally the red light comes on at 240 miles, I fill up at 250m, that's only 400 km.

The one time I reached 314 m, I dunno, I topped off both times at the gas station, so it's definitely an accurate measurement..

I JUST SET MY NEW RECORD HIGH 12.471 MPG!!

Last tank with "normal" city driving = 13.26 mpg.

Since keeping a fuel mileage log, I've driven almost 2,500 miles and have an average MPG of 14.53.

:(

Originally posted by BIU
its not your imagination..... a lower grade fuel will last you longer but less power, a higher grade will burn faster but more power.


when you guys say 21 mpg...

how many KMs is that in one tank?

Right answer, wrong reasoning. After reading several threads on octane, I feel almost like I undrstand it...

What is happening is the opposite of what you wrote. Premium unleaded gasoline is LESS volitile than Regular 89 octane gas. Since it is harder to burn, it less completely burns thus creating less power. This is why it's good for FI applications... Fi= more pressure = more heat = detonation = bad. THUS... lower grade gasoline will burn more easily and more completely creating more power.

Holy Moses! 505km with one tank, it's so great just to hear it!
My 8 is still new (only 2500miles). I hope this is the reason why I can't reach that number yet!
I got 420km when I was driving on a highway with average speed about 85mph. What was your driving style ptiemann, when you got 314miles?