Yeah, 10k miles.

 

It definitely couldn't be attributed to something else? Maybe lower weight oil?

 

Or different season, weather, formulation of gas?? The engine should be fully broken in well before 10k miles.

 

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.

 

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.

 

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...

 

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.

 

hehehe mine has an mpg of 10.5 with 350 miles on it.

 

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.

 

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.

 

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!

 

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).