I'm new to the Z, so I'm not sure yet.
For a 2009 6-speed sports model doing 100% highway, what should I expect?
25ish?

Less, I get 19 high way

Yea so, I was averaging 23. Now that I've settled in to the Z, I've found myself driving it a little differently. I'm down to 19-20MPG, as of my last tank refill. I suppose, especially with the 6MT, it depends how you're driving it.

i have had my Z for about a month now, MT and i seem to get 17-19 mpg TOPS. in all fairness, after shes warmed up i do usually get on her a little bit. i live out in the country so the temptation to drive spiritedly away from traffic is constant. way i see it, you gotta pay to play.

I get 14.1 , 16.9 as of this month city, high way respectively

After 2 weeks and about 900 miles, showing 19.5. Definitely more thirsty than what I'm used to (about every 5-6 days).

Oops, sorry about thread necromancy

19.5-20.5mpg, 60%fwy, 40%city on my 13 6MT:driving:

20-21.9 60/40 hwy/city DD

Was getting 19/23 70/30 on Nismo but last week that changed for some reason, the only thing I could think of was the recent oil change I did, noticed the oil temp dropped as well. Doubt it is the weather as it only gets warmer here in Florida. Now its 22/26. My average is 23.2. I have a heavy foot and drive aggressively. In Hawaii I was averaging 18/22 base model all year round!!

I also use cruise control every chance I get when I reach a certain speed usually 5-10 miles over the speed limit on the highway as much as possible. I don't know if that effects MPG. I also don't drive through much traffic my schedule is opposite for the day birds, and there is not much traffic at night.

Edit: Well since I know longer travel on the highway to the university, my gas mileage has dropped significatly, now I am averaging 16mpg woohoo!!!

How's your gas mileage ??
 

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Mobil 1 5W30 regular + BG EPR & MOA applied.

Anyway now it's too much expensive gas here in California.

:D

My gas mileage is shitty. If I cared I'd be driving a Prius. Good thing I don't care.:tup:

For real man. I'm only getting 14 mpg. Still don't care it's too fun to care.

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i skip that screen so no idea..

About what you get. Not worried about it. I enjoy the heck out of it. Worth every penny.

10.7 litres per 100 kilometres, averaged over 128000kms