Though the info provided is anecdotal information, I think it's a relevant thread to a fairly large group of newer G owners who may not have done their full homework on the car and missed the less than stellar mpg etc...at least this way they can determine where they rank, comparatively to others driving habits etc and not think that something is wrong with the car...

Frankly its been a great car for me, though the mileage is still somewhat disappointing, as i have friends with cars running more hp and getting better or same. im currently averaging 20 and that is due to cooler weather here in FL so no AC on and i guess that makes a ~2 mpg difference as in summer months im getting ~18.

hey, if the topic is boring , then such members should just pass and not post

 

LOL. Because this is serious business.

 

 

[QUOTE]LOL. Because this is serious business.maybe for some, but hey, didn't say it was, though you're reading it...

 

18.1 MPG with mostly city driving and a heavy foot. Have averaged almost 26 on highway road trips.

 

about 16 mpg until I get my fuel sending unit fixed =/

 

Around 12.5 mpg on my city commute (3 miles one way with ten traffic lights and five stop signs!), average speed 15 miles/h.

I just tested the highway mpg and found it's pretty good: 25.4mpg at average speed 66.5 miles/h.

So G37x really sucks at low speed stop and go traffic. Well, my previous 2000 Accord LX 2.4L is only 2-3mpg better than G37x on the exact same city commute.

 

Around 21-22 in mixed driving; 27 on my last highway tank (70-80 mph).

 

2009 G37S Sedan averaging 15-16 with medium hard acceleration in the city and 26ish on long road trips which is a relief.

 

18.8 city for now. I have not had a chance to take it out on the way highway.

 

Just passed 2000 miles that I've had my '12 G37S Sedan 6MT.
15.7 mpg, 90% aggressive city driving.

 

27mpg on the highway

 

<a href="http://www.fuelly.com/car/infiniti/g37/2011/Dreamerzcc/400821" target="_blank"><img src="http://badges.fuelly.com/images/sig-us/400821.png" width="500" height="63" alt="Fuelly" title="Share and compare MPG at Fuelly" border="0"/></a> and for when Gas mileage is my concern <a href="http://www.fuelly.com/car/lexus/ct200h/2015/Dreamerzcc/400820" target="_blank"><img src="http://badges.fuelly.com/images/sig-us/400820.png" width="500" height="63" alt="Fuelly" title="Share and compare MPG at Fuelly" border="0"/></a>

 

Winter's here, dropping down to 18mpgish, should be down to 15 or less as it gets colder.

 

California (Inland North County San Diego to Newport Beach and back), so I'm averaging around 75-80 mph during these stretches. If I could go 60-65 mph, my guess is that MPG would improve slightly (maybe not since the 7AT has some tall gearing). Impossible here though as you will get run over going that slow. Again , per the other post, 17 mpg going back and forth to work on city streets with hills and ~12 traffic lights to pass through, most of which are Red because it's mostly residential. All stock, 20K miles.

In Infiniti's defense, not bad for a car with 11:1 compression, port based injection, that can hit 60 mph in 5 seconds.

Also, our fuel is heavily treated to meet strict EPA/emission standards. I lived in Texas for a few years and my 04 ran alot better on TX fuel (I also lived in CA with this car, so the comparison was easy). Better mileage/performance, etc. California should be a worse case scenario for mileage.