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

2IS MPG Threads (MERGED master thread)

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Old 08-13-07, 07:49 PM
  #91  
lobuxracer
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Before I started commuting it was 25.6 mpg for about 33,000 miles. Now that I commute 20 miles a day each way, it has dropped steadily to 24.5 mpg, and with my normal tank average now about 21.5 mpg, I expect it will continue to drop until I make a long trip again. Nothing like filling up and driving the entire tank without stopping at freeway speeds for pumping up the all time average.
Old 08-13-07, 07:52 PM
  #92  
CarlitosPR
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Im in the 18-19mpg range. instead of going up its going down. also im driving it from 2-3 hours a day in the week and the weekend a little more. but i love driving my car so gas is no headache for me even with freaking overprice. .
Ps. i have 14600 miles since dec 06.
Old 08-13-07, 07:56 PM
  #93  
Audiofan2
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25.1 MPG with about 85% HWY 15% City. Note HWY = about 74 MPH and City = frequent full throttle fun times.
Old 08-13-07, 08:30 PM
  #94  
is4fsr
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26.1 mpg ave.

I commute 31mi each day 50/50, mostly stop and go traffic street/fwy consistent at 24.5 - 25 mpg tank ave.

Once got 31 mpg from LA to Vegas going @ 80-90 mph w/ AC on.
Old 08-13-07, 08:30 PM
  #95  
EBMCS03
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25.x mpg 15.3K miles on the clock 90% highway.
Old 08-13-07, 08:45 PM
  #96  
ABC
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it's around 26-27mpg on my 250.
Old 08-13-07, 08:46 PM
  #97  
acl15
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29.2 mpg @ 29000 miles with 50/50 city/highway in my is250.
Old 08-13-07, 09:11 PM
  #98  
kikaida
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19~20 mpg @ 2600 miles. 60/40 city/highway
Old 08-13-07, 09:13 PM
  #99  
xkylar
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18-19mpg on ECT normal mode. About 14-16mpg on ECT power mode. All city driving (no highways in Guam sadly).
Old 08-13-07, 09:16 PM
  #100  
EBMCS03
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Originally Posted by acl15
29.2 mpg @ 29000 miles with 50/50 city/highway in my is250.
DANG are you serious? 50/50 and you still get 29.2 mpg average over the lifetime of the car?
Old 08-13-07, 09:20 PM
  #101  
jackblack7
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Originally Posted by acl15
29.2 mpg @ 29000 miles with 50/50 city/highway in my is250.
How many miles do you go between fill ups?
Old 08-13-07, 09:30 PM
  #102  
ben_r_
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23.3 mpg on my 250 with 5000 miles on it. During the weekdays its about 90% freeway but only going 20-40 mph, so I may as well be on surface streets. Then on weekends its all city. And of course there is the AC during the warmer months. I have steadily watched my mpg drop the hotter the months get. My last car was a 4 cyl Accord 5 speed MT and in 37k miles I averaged only 24.6 mpg. Thats why I was afraid to get the 350 being that I know no matter what I drive Im going to get bad gas mileage out of it.
Old 08-13-07, 09:46 PM
  #103  
mwaull
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22-23 mpg . . . 50/50 city/hwy
Old 08-13-07, 09:48 PM
  #104  
blk250
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Mine is between 29.2 ~ 29.7 mpg on the 250RWD. I drive 70% freeway / 30% city, maybe that is the reason. Every fill up I can go up to 455 miles with 15+ gallons.
Old 08-13-07, 10:05 PM
  #105  
IRCRomeo
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Horrible milage. 20mpg right now with mixed driving. I baby it and coast all the time.


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