IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

2IS MPG Threads (MERGED master thread)

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Old 10-25-07, 12:45 PM
  #151  
Orzel
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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.
Old 10-25-07, 09:09 PM
  #152  
Recluse
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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.
Old 10-28-07, 12:11 AM
  #153  
kickin8
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full tank

Old 11-01-07, 11:32 PM
  #154  
iialcii
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Originally Posted by kickin8
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

Last edited by iialcii; 11-02-07 at 06:54 PM.
Old 11-01-07, 11:38 PM
  #155  
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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.
Old 11-02-07, 01:16 PM
  #156  
contourrob
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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.
Old 11-02-07, 06:54 PM
  #157  
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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?
Old 11-02-07, 07:54 PM
  #158  
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well, with my 350 I am NOW averaging about 21-23 miles which was better than my 18.3 that i used to average.
Old 11-02-07, 07:58 PM
  #159  
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Originally Posted by iialcii
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?
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.
Old 11-03-07, 02:39 AM
  #160  
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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.
Old 02-03-08, 10:32 AM
  #161  
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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...
Old 02-03-08, 11:22 AM
  #162  
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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.
Old 04-30-08, 07:29 PM
  #163  
ssmoked
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Default 2IS MPG Threads (MERGED master thread)

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
Old 04-30-08, 07:31 PM
  #164  
Chadley6mt
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depends on how you drive... you gottaq be super soft with the 6mt to get good milage as well as using premium fuel.
Old 04-30-08, 07:59 PM
  #165  
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What are your shift points? What are your cruising gears/speeds/rpms? How many miles do you have on the car?


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