G35 Sedan V36 2007- 08 Discussion about the 2nd Generation G35 Sedan 2007 - 08

21 MPG avg. at 220 miles on Odometer

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  #16  
Old 11-11-2006, 12:41 PM
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Originally Posted by JWangSDC
After 10K miles!!??
Yeah, 10k miles.
 
  #17  
Old 11-11-2006, 12:42 PM
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Originally Posted by ABQ_G35
Yeah, 10k miles.

It definitely couldn't be attributed to something else? Maybe lower weight oil?
 
  #18  
Old 11-11-2006, 03:15 PM
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Or different season, weather, formulation of gas?? The engine should be fully broken in well before 10k miles.
 
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Old 11-11-2006, 04:19 PM
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I must be the exception here. My car did better when new. Might have something to do with getting my foot in it a little more than during the first couple of tanks.
 
  #20  
Old 11-11-2006, 10:09 PM
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Originally Posted by JWangSDC
UNLESS, ur odometer is off too....
I don't trust the trip odometer anymore, as it doesn't match what the total odometer says for miles. I need to talk to my dealer about that. It seams that every other fill up will be about 5 miles different from the total odo.
I'm getting 17+ mpg city driving. I take allot of short trips (less than 15 miles), but I still drive about 300 miles in a week.
 
  #21  
Old 11-12-2006, 07:17 AM
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640 miles with an average of 16.8MPG. I've also been doing about 65% highway driving and haven't revved past 4K many times.

Keep in mind I have an X, but still...
 
  #22  
Old 11-12-2006, 07:28 AM
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JWANGSDC,

I also have a X and live in Wash DC. I have traveled in traffic and backroads, highway. etc. Myreadout says 20.9 mpg. I have calculated by the fill up divide by gallons method and show 22.74 mpg. 14 is out of the question....Maybe something wrong. I know the first tank I realy babied the throttle. I couldn't get the readout above 18 or so. When I drove normal, but race like, the mileage shot up. Maybe a glitch in the fuel management programming.
 
  #23  
Old 11-13-2006, 02:24 AM
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Originally Posted by bogeydog
JWANGSDC,

I also have a X and live in Wash DC. I have traveled in traffic and backroads, highway. etc. Myreadout says 20.9 mpg. I have calculated by the fill up divide by gallons method and show 22.74 mpg. 14 is out of the question....Maybe something wrong. I know the first tank I realy babied the throttle. I couldn't get the readout above 18 or so. When I drove normal, but race like, the mileage shot up. Maybe a glitch in the fuel management programming.

So basically, you drive it harder and get better MPG? That sounds awesome, I can't wait till I pass the 1200 mile mark.
 
  #24  
Old 11-13-2006, 11:10 PM
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hehehe mine has an mpg of 10.5 with 350 miles on it.
 
  #25  
Old 11-19-2006, 02:13 PM
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Weird. Just had my second fill up today. The first one I got 18.6mpg. This time, I got a whopping 23.9mpg!!! But how can that be? I drove a bit harder this time, too, revved occasionally to 4000rpms. I didn't get close to 24 even in my Mazda6 (also a v6).

Correction: I actually didn't fill it up all the way. The nozzle was kind of messed up, and I had to manually hold it in. So the gauge doesn't point to F exactly. My goal is still to reach 20mpg.
 

Last edited by GoofyG28; 11-19-2006 at 04:04 PM.
  #26  
Old 11-19-2006, 07:15 PM
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Originally Posted by GoofyG28
Weird. Just had my second fill up today. The first one I got 18.6mpg. This time, I got a whopping 23.9mpg!!! But how can that be? I drove a bit harder this time, too, revved occasionally to 4000rpms. I didn't get close to 24 even in my Mazda6 (also a v6).

Correction: I actually didn't fill it up all the way. The nozzle was kind of messed up, and I had to manually hold it in. So the gauge doesn't point to F exactly. My goal is still to reach 20mpg.
I'm still only getting 12 to 14mpg except for one tank that was almost 100% highway and I got 21mpg.
 
  #27  
Old 11-19-2006, 10:31 PM
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My 03.5 6mt averaged 25 mpg on the freeway doing a steady 70-75 mph.

About 6 months ago, I put on the Stillen SC. I was told that the gas mileage would be horribly affected, but I ended up averaged 24 mpg on the freeway doing a steady 80-85 mph.

Getting hard on it while it was naturally aspirated I would get about 16 mpg. Now, getting hard on it I average about 13 with the SC.
 
  #28  
Old 11-21-2006, 02:54 AM
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Had my 07 G35 sedan for 1 week now. 3 fillups 18.7, 20.8 and 22.1. All mixed, except a bit more freeway on this last one. I figured this wasn't going to be a stellar mph car, but that's OK. This is my "fun - zoom" car. I have a 1 year old Prius for my practical mileage car and that gets between 45 and 52. So I figure between the 2 of them I have (2) 35mpg cars! It seems like this car will probably achieve a good 25mpg or more on mostly freeway trips if I don't go too crazy. But it's hard not to want to give it the gas when you have a car as cool as this one. Having a blast.
 
  #29  
Old 11-21-2006, 07:10 AM
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Originally Posted by sotagear
Had my 07 G35 sedan for 1 week now. 3 fillups 18.7, 20.8 and 22.1. All mixed, except a bit more freeway on this last one. I figured this wasn't going to be a stellar mph car, but that's OK. This is my "fun - zoom" car. I have a 1 year old Prius for my practical mileage car and that gets between 45 and 52. So I figure between the 2 of them I have (2) 35mpg cars! It seems like this car will probably achieve a good 25mpg or more on mostly freeway trips if I don't go too crazy. But it's hard not to want to give it the gas when you have a car as cool as this one. Having a blast.
LOL, three fill-ups in one week.......sounds like someone is having fun driving!
 
  #30  
Old 11-21-2006, 09:42 AM
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Originally Posted by Railgunner
Or at least that's what it says on the the bar graph on the screen in the dash.

Mostly driving back and forth to work. Commute is about 1/2 stop and go crawling along in bumper to bumper traffic and the other is 50-60 mph highway.

Not bad MPG so far.

My experience tells me the car's automatic reading is always 1/2 mpg overrated. In other words, if it shows you 21mpg, it really is 20.5mpg. Tested it on my 04 coupe for 2 yrs and 20-something thousand miles. It was constantly .5 mpg over my calculation (fill up reading when compared to miles driven).
 


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