Is350 mpg
01-19-12, 07:35 PM
#32
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Dang!!!! I was averaging about 19.5 (city) on my 450hp Corvette. I once got 29.7 on a freeway trip to San Antonio on that vette.
01-20-12, 06:23 PM
#34
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I have a semi-related question not worth starting a thread over: What are people seeing as the average drop in MPG in winter vs. summer driving for their IS350?
I understand that for a lot of reasons, your gas mileage in the winter will be worse than in the summer holding all else equal (http://www.metrompg.com/posts/winter-mpg.htm).
So what kind of drop are you seeing?
I ask because this past weekend I took a long 400 mile road trip or so all highway driving, and I got 25.6 MPG or so for the tank. This was almost 100% highway driving.
In warmer, summer weather, it wouldn't be unusual for me to get 30-32 MPG on the highway.
So is that drop for winter conditions in line with what others are seeing?
I understand that for a lot of reasons, your gas mileage in the winter will be worse than in the summer holding all else equal (http://www.metrompg.com/posts/winter-mpg.htm).
So what kind of drop are you seeing?
I ask because this past weekend I took a long 400 mile road trip or so all highway driving, and I got 25.6 MPG or so for the tank. This was almost 100% highway driving.
In warmer, summer weather, it wouldn't be unusual for me to get 30-32 MPG on the highway.
So is that drop for winter conditions in line with what others are seeing?
01-20-12, 06:24 PM
#35
About 17 ish MPG for me (city 30% / freeway 70%). I think i can go about 250~260 miles on full tank of gas. I had about 38 MPG when I was driving like granny and non stop from north cal to southern cal. (I think I drove 410 miles with one tank) So yea... I guess it depends on how fast you drive? 
01-20-12, 08:30 PM
#37
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WE get about 16 on average with our 2011 IS350, but my wife only has to drive 2 miles to work everyday. For typical city/highway combined, we're getting 21 mpg. Funny thing about the IS350 is that it almost REQUIRES you to drive fast, it shifts so much smoother when you mash the accelerator!
01-21-12, 05:03 AM
#38
I get average 23-24 mostly hwy, I'd say 70% hwy 30% city with Ect on all the time and I got a heavy foot. I get about 340-350 miles out of the tank. I've tried to drive nice and easy on one tank to see what's the most i can get but the temptation is too much and can't make it without stepping on it 
Otherwise avg 24, 80% freeway drive.
01-21-12, 01:46 PM
#42
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Just an FYI, those with auto climate control - if you leave it on all the time, you will definitely see a drop in MPG. If you turn it off, you'll see an increase in mpg almost immediately. Personally I leave mine on all the time and get about 17-18 mpg city and 23-24 mpg highway. My commute to work is less than 2 miles away, so my city driving is very inefficient.
Last edited by reset2k; 01-21-12 at 02:22 PM.
01-21-12, 04:56 PM
#44
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Just an FYI, those with auto climate control - if you leave it on all the time, you will definitely see a drop in MPG. If you turn it off, you'll see an increase in mpg almost immediately. Personally I leave mine on all the time and get about 17-18 mpg city and 23-24 mpg highway. My commute to work is less than 2 miles away, so my city driving is very inefficient.
01-21-12, 05:35 PM
#45
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