first road trip - 2009 sedan
#16
Registered User
Reset your in-dash calculator and get back to us in a few days. Try not to idle at all, except at lights. Are you in NYC or LA?
#17
#18
Registered User
iTrader: (-1)
Are you idling much? There's got to me something going on there. I'm getting 18 in the city and about 16-17 if I'm romping on it here and there.
Reset your in-dash calculator and get back to us in a few days. Try not to idle at all, except at lights. Are you in NYC or LA?
Reset your in-dash calculator and get back to us in a few days. Try not to idle at all, except at lights. Are you in NYC or LA?
I reset the calculator all the time, and It never showed me more than 13. One time I got 18, but that doesn't count because I never went past 1,500 rpm, the car was practically rolling. Idling might be an issue, I live in NYC
#21
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Join Date: Mar 2009
Location: Chicagoland
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I think that idling is probably the biggest contributor to low mileage for those that get really bad mileage.
#23
Seems the EPA city cycle is maybe slightly optimistic for real-world, but the highway may be slightly pessimistic. A big V6 is not going to get great city mpg especially with a lot of idle time. That much is obvious. But I have owned many V8 sedans with less power than the G37 that were lucky to get much over 20mpg on the highway, so the G is doing pretty good in that dept.
My S4 gets 16-17 around town but only 21-22 on the highway, so the gap between it and the G37 is pretty minor in city driving but more dramatic on the highway.
My S4 gets 16-17 around town but only 21-22 on the highway, so the gap between it and the G37 is pretty minor in city driving but more dramatic on the highway.
#24
Registered Member
Seems the EPA city cycle is maybe slightly optimistic for real-world, but the highway may be slightly pessimistic. A big V6 is not going to get great city mpg especially with a lot of idle time. That much is obvious. But I have owned many V8 sedans with less power than the G37 that were lucky to get much over 20mpg on the highway, so the G is doing pretty good in that dept.
My S4 gets 16-17 around town but only 21-22 on the highway, so the gap between it and the G37 is pretty minor in city driving but more dramatic on the highway.
My S4 gets 16-17 around town but only 21-22 on the highway, so the gap between it and the G37 is pretty minor in city driving but more dramatic on the highway.
#26
Any one did the calculation manually? How accurate is the trip computer compared to your result?
#28
Keep in mind - if you are getting 15-16 in your use and the EPA rates city mpg for the 09 G37 at 18 and the 10 at 19, then you would be getting the same thing or likely worse in an S4. And you would be very lucky to get 13-14 from a C63 and most likely get worse than that. But seriously, did you really buy the G37 for it's city mpg? No sports sedan with a powerful 6 or 8 cyl motor is going to do well in pure city driving. Get a small car with a 4 cylinder if that is your goal. I suggest a civic or Mazda3 which should both get above 20mpg in pure city driving.
#29
Registered User
iTrader: (-1)
You got a point. I did not buy this car for fuel economy, I bought it for performance.
I don't care if putting gas in this car will suck me dry. I will beg, borrow and steal to keep this rocket fueled.
However I hear everyone getting 15-18mpg in the city while ripping the car occasionally, meanwhile I get 10-13 taking it easy. It makes me think there might be something wrong with car. Which is strange considering it's NEW
I don't care if putting gas in this car will suck me dry. I will beg, borrow and steal to keep this rocket fueled.
However I hear everyone getting 15-18mpg in the city while ripping the car occasionally, meanwhile I get 10-13 taking it easy. It makes me think there might be something wrong with car. Which is strange considering it's NEW
#30
You got a point. I did not buy this car for fuel economy, I bought it for performance.
I don't care if putting gas in this car will suck me dry. I will beg, borrow and steal to keep this rocket fueled.
However I hear everyone getting 15-18mpg in the city while ripping the car occasionally, meanwhile I get 10-13 taking it easy. It makes me think there might be something wrong with car. Which is strange considering it's NEW
I don't care if putting gas in this car will suck me dry. I will beg, borrow and steal to keep this rocket fueled.
However I hear everyone getting 15-18mpg in the city while ripping the car occasionally, meanwhile I get 10-13 taking it easy. It makes me think there might be something wrong with car. Which is strange considering it's NEW