i know how you guys feel. i have a 3.8L v6 in my intrigue and im averaging 15-17mpg. and driving my car is no where near the fun of driving a g35 coupe.

 

the car my G is replacing is a saturn, that gets 35 mpg.

mileage like that is a pleasure that will be missed. but about the only thing.

04 6mtC

 

I get about 23 mpg daily driving. Half highway and half city. I was getting about 19 when I first got the car. I have almost 12,000 miles on it now. My highway mileage is close to 30 mpg.

Ryan

03.5 Red w/ Willow G35 Coupe, Premium and Nav
Strictly stock for the time being.

 

No, Aldo420, what is dumb is a 6 cylinder getting such bad mileage.

I have a AT coupe with about 5500 mi. and I consistantly get about 16mpg. This is **** poor for a V6. Doing the same daily drive in my prior car, a BMW 540, which is a V8, I averaged 18 mpg.
The G's gas mileage is the furthest off from the claimed EPA mileage of any car I have ever owned.
Obviously if you are racing around and always flooring the car you can understand bad mileage, but I think most people on here are complaining about poor mileage in normal daily driving situations. I suspect that those of us getting low mileage are probably driving in city traffic alot,and those claiming mileage in the 20's are probably doing mostly freeway driving in no traffic.
I do love my G, but the mpg should be better.

 

I've pretty much got a 70/30 split of city/hway, and I'm averaging up to 20 per tank. I'm not sure why, I don't exactly baby the car and the places I usually drive are riddled with stop signs and lights, not to mention 35mph speed limits. What can cause such a major difference between us? The only thing I can naturally assume would be driving habits, but then again no one likes to hear that... so, then what?

G

2003.5 Black w/ Willow G35
Premium / Sport / Aero / Winter / Navi / Tint

 

I get about 250 miles and have a 1/4 tank left... with my Nissan Sentra which I had before this, I got 250 miles with a 1/4 left..... difference? 11 gallon Sentra & 20 gallon g35... So I paid between 12 & 14 dollars for the 87 fuel in my sentra and paid 20 & 22 dollars for the 93 fuel in my g35... I'd have to say that difference is definately worth it for a g35 .... If you'd rather be driving a 95 sentra and paying 8 dollars less gas a week, then be my guest, it's for sale :P. But as for me, I'll take one less trip to McDonalds a week and pay the extra :P

 

I seriously think some G's have a "MPG problem" and others don't. I'm in the 22-25MPG camp as are many others. But a few unfortunate souls are much less.

Maybe some kind of manufacturing defect? Faulty oxygen sensor. Anyone with lower MPGs dyno their car? Maybe there's a difference somewhere....

G35 6MT/DG/Fully Loaded
[i]HyperGround Kit
350Z intake duct
K&N drop-in
Aluminum pedals
50%-35% smoke tint

 

Interesting little experiment:

I know my gas mileage around Indianapolis. I get ~21-22mpg with my city/hway driving habits.

On the way down to Nashville, I set cruise control at 71 going through southern Indiana, and I got 27.8mpg. When I hit Kentucky, I reset it and got 25.0, when I hit Tenn. I reset it again, and I got 26.9. I then reset it again once I got to Nashville, and drove about 200 miles in the five days that I was there... I reset my gas mileage each day, and I averaged 17.2 with just "general" driving down there (to the movies, visiting friends, dinners, a trip to CC)

So... why do I get significantly better gas mileage in Indianapolis than in Nashville? It's a hilly city, yes, and it's pi$$-poorly designed, so there are stop-lights on top of stop-lights on top of stop signs... Also, the hilly stretch of 65 in KY netted poor results, as did the nothern portion of TN.

Draw your own conclusions... I made sure I made this as scientific as possible without having to actually get **** or anything... I drew 5 samples in Nashville, and two from each stretch of 65 (there and back). Difference in conditions was negligible (weather, road surfaces, etc.)

G

2003.5 Black w/ Willow G35
Premium / Sport / Aero / Winter / Navi / Tint

 

gsg (Registered)
10/13/03 11:48 AM

"No, Aldo420, what is dumb is a 6 cylinder getting such bad mileage.

I have a AT coupe with about 5500 mi. and I consistantly get about 16mpg. This is **** poor for a V6. Doing the same daily drive in my prior car, a BMW 540, which is a V8, I averaged 18 mpg.
The G's gas mileage is the furthest off from the claimed EPA mileage of any car I have ever owned.
Obviously if you are racing around and always flooring the car you can understand bad mileage, but I think most people on here are complaining about poor mileage in normal daily driving situations. I suspect that those of us getting low mileage are probably driving in city traffic alot,and those claiming mileage in the 20's are probably doing mostly freeway driving in no traffic.
I do love my G, but the mpg should be better."

You hit it right on the head. I know this is a sports car and I don't mind paying for a little extra gas to get my thrills, but the kind of mileage I'm getting is what I should be getting if I'm pounding on the car constantly, not just driving easy around town. I'll admit I do 80% in-town driving also, but I should be getting much better mileage than this: 'went only 186 miles last week and it took 12.9 gallons to fill the tank back up (do the math)! Am I driving a V-6 or a V-12 here?


2004 6MT (Silver/Willow), premium & aero packages

My old ride (I still miss her; put a lot of pride and joy into it): http://www.n-body.net/registry/john95ga/

 

average of 26mpg with 18000 miles..
probably broke in hard at low mile (salesman was driving without me)

I don't know.. I drive like a maniac everyday..but I do get nice mpg...

and we only have 91 octane around local

2003 G35 Coupe 6spd

 

I did notice that people using 91 vs 93 seem to be getting better milage.

Is this the case?
Also is it the case that the 03.5/04 are getting better than the 03.

I think it is also the case that the longer you own the car the better the MPG

I am getting 20-22 around town.

I had a 93 J30t which had a 3.0 ltr 210 HP motor that got 21

I now own a car that has 50 more HP and lots more low end torque and get equal to or better MPG.

I have no reason to complain.

YOu want to complain own a oddge Grand Caravan with the 3/8 liter. Can never get better than 17 mpg iaround town. Old 3.3 liter version got 20 around town. The 3.8 gets 22-23 hwy where the 3.3 got 26 hwy

These engines are notorious for bad MPG

I wish I could put the G engine in the minivan.

Have a healthy day!
03.5 G35, Black on Black