Question About Mpg On Is300

oj2000 · December 22, 2005

I am having a 2005 IS300, and i averagly get 240 miles until the light goes on, both highway and local, is that normal? or is there some problem with it?

Thankyou!! ^^

This might seems a stupid question, but i am sorry about it caue i am a newbe....

bartkat · December 22, 2005

That would seem kinda low. With my 2002 I got 18 - 20 MPG in mixed local driving and on a trip of all interstate I got 25 MPG.

oj2000 · December 23, 2005

oo....so is there any problem with my car?

bartkat · December 23, 2005

Well, miles till the light comes on, isn't a very good number to use. Maybe run a full tank and record the miles, then do a MPG calculation.

If you figure that you have used 15 gallons when the light comes on, and have traveled 240 miles, then that would be about 16 MPG, assuming that the 15 gallon figure is correct. That's really on the low side.

What are your driving habits, conditions, etc?

yelodel · February 3, 2006

I average 21-22 MPG while driving more highway than local. I usually fill her up at 320-350 miles, that's about when the light comes on. However, if I do a lot of city driving, the MPG is much worse, but 16 MPG is not right. I see that kind of fuel consumption on super/turbocharged 2jz's.