08 IS250 RWD 6AT

Tank AVG: 27
AVG: 25

70% Hwy. 30% City.
Occasional Spirited Driving.
400 miles on the Odometer.

Btw, how do i reset the lifetime mpg?

 

Glide driving ftw

08 IS250 RWD

Tank Avg: 24
AVG: 22

85% City
15% HWY

 

So what do you mean by 'Hydrogen Fuel Cell'? Do you mean you will mod your IS to be like the Honda FCX Clarity? That will be a big project since you need to solve problems like how to install the tank that store high pressure low temp liquid Hydrogen, and also put in an electric motor and corresponding transmission etc...

 

ok i on a 320 mile trip i averaged 25.6 mpg at 80mph how good or bad is that, i was expecting a bit more

 

i got 35 mpg for tank average!!

 

i get awesome gas mileage

 

Steps to reproduce:
1) Top off tire pressures.
2) Fill up the tank at a gas station on the top of a hill.
3) Turn off A/C
4) Enter highway (down hill) with light accelleration up to 67 MPH.
5) Press ECT-PWR button.
5) Snap picture.

 

i think somethings wrong with my IS. trying my best, not letting the RPMs pass 3500, i stilll get 18 MPG, all city driving and lots of traffic jams (short trip)

 

City driving with lots of traffic jams and short trips totally explains your gas mileage.

 

'08 IS250
RWD

20-24 city
25-31-hwy (depends on traffic)

 

I am not sure whether you guys notice that the digital meter reading isn't accurate at all. It is very off.

For instance, the meter read a tank average of 28.x right before I filled up the tank; when I filled up the entire tank, the pump said 14.247 gallons and my trip meter said 360 miles; in order words, the actual mpg should be 25.268 gallon/mile (i.e. 360miles/14.247 gallons). The meter is far off.

Anyone notice that? Or is it just a problem with my meter?

 

Thanks to my Road Trip iPhone application, I have posted the following MPG after each tank fill.

Tank 1- 18.85
Tank 2- 18.87
Tank 3- 20.09
Tank 4- 19.26
Tank 5- 18.89
Tank 6- 20.83
Tank 7- 21.74
Tank 8- 18.48
Tank 9- 20.14

Average- 19.69, $2.42/Gal, $0.12/mile, 122.22 gal, 2,407 miles since Purchase March 29, 2009.


Big difference coming from a 1997 BMW 540 where I probably average 14-15 MPG.

I drive probably 80% City in Phoenix/Tempe heat.

 

It averages 25 and I've gotten as much per tank as ~32. Driving to Vegas, I averaged 30+ mpg.

 

Recent MPG from my IS350:

370 freeway miles, A/C on, and some stop-n-go at summer road construction areas: 28.61 MPG

240 miles, 2/3 freeway and A/C on half of the time: 25.8 MPG

 

I've got a 250 AWD. Through 26596 miles, my running average is 22.546 MPG. Lowest was 18.623 MPG and highest was 26.913 MPG.