Check out my FUELLY.

I'm pretty happy with my mileage. I drive probably 75% hwy.

don't understand anything on that page....

nice gas miles guys

I got 315miles on 13.5gal (about 3/4 of a tank) which equals 23.3 miles per gal. Which from reading some of the other posts is really good. And it never uses any oil. I think I might have a good one. I don't drive too hard, but not like a grandma either. If I want to drive fast I will take one of the Vettes out.
Jeffy'

I was able to drive from Modesto to San Diego on one tank. I filled up all the way right before getting on the freeway and made it to San Diego but I was taking a chance since the E light was on for about 20 minutes. The total miles of my travel was around 450 miles all on the freeway.

I drive 70% local 30 freeway and I can get 24mph if I wanted to but mostly hovering around 19mpg because I am always late for something. Trance Around the World integration into the stereo definitely doesn't help neither. Hypermilling yields about 27mpg on the highway.

I think the Z-tube, pulley and spacer (especially motordyne spacer) helped my gas milage quite a bit. The Borla exhaust robbed gas milage noticeably.

My record is 440miles from Orange County to San Francisco one shot. I was sweating the last 40 miles or so with the needle on E but whatever. Turned out the car still had a couple of gallons. G35 fuel gauge is pretty conservative.

its sad, i get like less than 300 every time on a full tank. ):

20.9 mpg average over 85000 miles. So, 20 gallon tank, that comes to 418 if I run it dry.

good to all of you guys i have an 04 g35x and i drive in NYC all city and i get like 180 190 tops

9 1/2 mpg is pretty bad. Turn it off when not moving.

Wow...I get around 500 mostly highway! I never go over 72 mph...I found that at 75 or more is HUGE reduction and only saves a few minutes at best on a 200 mile journey...not worth the increase in burn at today's gas prices...

I get around 350 miles in my 05 coupe

I get around 280-300 all city and 320-360 on mixed driving, depending on how aggressive I drive in my 05 Coupe MT. Driving 65-70pmh on the highway with cruise control and keeping your rpm under 3.5K is key.

Man, I drive around 90% city 10% hwy, and get about 260-275 in Atlanta

Fill up needed every 200 miles (mixed hwy/cty)... But she will only take 11-12 gallons