Ours is an AWD and lifetime average is at 25.6 now (15k miles on the car). We see a consistent 30+ MPG when we run from Northwest Washington to Eastern Washington (about 400 mile round trip), this includes a mountain pass at over 4k feet. Flatland driving has seen 32+MPG. Great commuter car.

 

I just topped 13 MPG on a consistent basis. That's with about 99.9% city driving, and an average speed of about 12 MPH. I generally shift around 3000-4000 RPM.

The car feels faster than 204 hp might indicate, although I sometimes wish the car had a little more power for those moments when you have to almost stop, but are still going a little too fast to shift to lower than second gear.

 

full tank

 

My Range Aprrox is only like 33X something. Weird ohh wells more power to you, wish i get those miles, maybe if i reset my ecu and change my driving habits then i would get near 400. ill give it a try

 

350's seem to be getting good gas mileage if you drive mostly on the highway. I have averaged about 28 mpg doing around 75 mph and 26 mpg for the overall average city & hwy since new. 13k miles.

 

My dashboard shows ~30 mpg overall. I get about 425 miles per tank. My range usually shows ~450 miles when I first fill up, but a few sprints around town usually pull my average range to about 425 miles. There have been a few tanks where I've done 440+ miles on a single tank.

FYI - Most of my driving is done on the highway in PA.

 

I filled up today and my range Aprox only 338
I wonder if its the computer that adapts tp the way I drive, I shift normally around 3,500 . I wonder how everyone is getting above 400 and mine wont even come close, any ideas?

 

well, with my 350 I am NOW averaging about 21-23 miles which was better than my 18.3 that i used to average.

 

I'd be doing backflips if I got 338....this car apparently hates all-city, stop and go driving.

With my gas mileage, I should have just gotten that Ram SRT-10 I was thinking about.

 

I get 28-29 mpg. Spirited city driving, but 70-80% highway cruising at 70-75 mph. Range always displays 435-440 at fillup but realistic range for me is about 420 or so.

Oh this is with an AT.

 

Man you guys are getting better than I do in my 4 banger TSX. I wish I would have gotten the IS250 instead...v6 with the same MPG as the tsx...who knew...

 

I get about 20mpg... and I fill up about once every 3 weeks . Hehe, that's because I go to a university and take the bus or bike to school everyday and only drive for like 5 miles every night. So that's roughly 20mpg in the city on a cold engine.

On 300 mile roadtrips, my avg is about 33mpg going 70-75mph.

 

how come the IS250 manual gets the same mpg as the 350 and the 350 has 100 more ponies?? I always thought the manual gets more than the auto

 

depends on how you drive... you gottaq be super soft with the 6mt to get good milage as well as using premium fuel.

 

What are your shift points? What are your cruising gears/speeds/rpms? How many miles do you have on the car?