Getting Only 15MPG on IS350 ?!?
**runs out to parking lot**
09-12-08, 01:34 PM
#19
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I don't think that is unusual at all. I have always gotten 13-15 mpg in my IS350. I live in gridlock and never go on the freeway (mostly Wilshire and Santa Monica Blvd. near the 405). But, even when I have light traffic, I think the best tank I've ever had was 17 or 18 mpg... Just the nature of a heavy car with a lot of power.
You can try driving in snow mode, but then you have a 250...
You can try driving in snow mode, but then you have a 250...
Just kiddin -- that was harsh
can't complain about 30mpg!
09-12-08, 01:57 PM
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Seriously, that's actually amazing, given it's a 3500 lb car and RWD! I forgot to mention I always have my air on Auto mode, so that might affect my mileage a little. Gas just never bothers me because my commute is 3 miles (my 2006 IS350 has 16k miles on it)...
I certainly would consider a Prius if I had a serious commute.
I certainly would consider a Prius if I had a serious commute.
09-12-08, 02:24 PM
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I don't think that is unusual at all. I have always gotten 13-15 mpg in my IS350. I live in gridlock and never go on the freeway (mostly Wilshire and Santa Monica Blvd. near the 405). But, even when I have light traffic, I think the best tank I've ever had was 17 or 18 mpg... Just the nature of a heavy car with a lot of power.
You can try driving in snow mode, but then you have a 250...
You can try driving in snow mode, but then you have a 250...
09-12-08, 02:38 PM
#28
No intake will produce a sustainable mpg increase. It would be impossible for it to do so given how the car controls fuel.
The ECU has fuel maps. X amount of air gets Y amount of fuel under Z operating conditions. The O2 sensors provide closed loop feedback to let it know if it needs to adjust that to maintain proper A/F readings.
There's tweaks you can make in the short term (a simple SAFC for example) but the closed-loop feedback will tune the changes back out after a little while.
The ECU has fuel maps. X amount of air gets Y amount of fuel under Z operating conditions. The O2 sensors provide closed loop feedback to let it know if it needs to adjust that to maintain proper A/F readings.
There's tweaks you can make in the short term (a simple SAFC for example) but the closed-loop feedback will tune the changes back out after a little while.
09-12-08, 03:05 PM
#29
This is normal. I got 17mpg when I had mine. If you don't drive on the Freeway and drive like a normal young adult and not a senior than this is probably normal. It is a little low but not out of the possibility.
09-12-08, 03:12 PM
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No intake will produce a sustainable mpg increase. It would be impossible for it to do so given how the car controls fuel.
The ECU has fuel maps. X amount of air gets Y amount of fuel under Z operating conditions. The O2 sensors provide closed loop feedback to let it know if it needs to adjust that to maintain proper A/F readings.
There's tweaks you can make in the short term (a simple SAFC for example) but the closed-loop feedback will tune the changes back out after a little while.
The ECU has fuel maps. X amount of air gets Y amount of fuel under Z operating conditions. The O2 sensors provide closed loop feedback to let it know if it needs to adjust that to maintain proper A/F readings.
There's tweaks you can make in the short term (a simple SAFC for example) but the closed-loop feedback will tune the changes back out after a little while.