What year Max? As I recall, mine did not improve in gas mileage as it got older. Just that being able to take it on much longer trips with all highway driving brought the overall avg. up. Not sure why, but I can't seem to top 26-27 with my 98 5-spd. Maybe it's my dub-twos (just kidding). It used to kiss 30-31 if I could nail 100+ miles of pure highway driving at 70 mph or so.

 

28 mpg is excellent imho.

 

Hey Wayne, that was a good trip and not bad mileage for your speed, weather and driving style.

 

That's what I thought John. Like I said that is basically straight highway driving. I figure this car is going to give me comparable mileage figures to my 05 G35X. I will have more accurate figures when I do actual calculations when I do fill-ups rather then go by the reading on the mileage figures that the car's computer give you. I always thought they tend to be on the high side.
I was very pleased Deane. When I arrived at Ian's, I was so impressed I said for him to have a look at the figures cause I couldn't believe it.
I am loving this car, I only have 1200 kms on it since the 7th, and it is performing so well .

 

X cellent milage Wayne
Just wait till it's broken in.....

 

I can hardly wait .

 

Good mileage, Wayne....as you say, tho, actual fillups may vary somewhat

Gosh, at that rate you'll have more k's next week on the new G than I have on my M!!

C.

 

Dynamite Wayne.

 

I got 28mpg reading on a 50 mile highway commute to work. That was a steady 65-70mph. Usually I average 22 on 60/40 highway-city driving.

 

2004 max averaged 23, but could squeeze 28 if I tried to "maximize".

 

Well it's definitely not the car for good mileage. About 2 months before I bought my new G I would corner other G owners in parking lots and ask them how they felt about the car. All loved their G but hated the mileage. So I knew going in that this wasn't going to be that kind of car. So . . . 6 fillups and 1400 miles later here's what I've achieved.
17.8 (lots of idle time while exploring the features)
20.9
22.1 (mostly freeway driving)
19.7
20.2
19.5

Almost all of these figures reflect me trying to maximize mileage. Based on how difficult it is to raise the mpg readout above 20 while driving mostly in the 30-40 mpg range, even when starting out with a fresh tank, I can see this is going to be a very hard car to come close to the highway rating of 26. But I love this car so I'm prepared to pay the price.

 

I'm at 2100 miles and I recently did a 600 mile trip from Seattle to Spokane and back. I managed to get a computer reading of 25.9 MPG and that was travelling at 70 MPH, mostly dry and coasting down hills when I could (former Prius driver here - I know how to milk MPG). In the Prius on same said trip in the summer, I got 57.7 MPG travelling at 60 MPH, but in Winter in the Prius it was more like 42 MPG. Temperature affects the Prius big time. My girlfriend has a Volvo S40 2.5T AWD with a highway rating of 30 MPG and she gets around 28 MPG doing 70-75 MPH. I'm off again to Spokane this weekend. If I get my G back from the dealer intime, I'll report the MPG again to see if I can get it above the EPA. It's going in tomorrow due to a whistling noise from the rear door. There is nothing lose on the trim, I think it is the door seal.

 

My X is broken in now and I can tell you it is a huge problem for me!! This car is WAY TOO FAST and sooooo much fun

 

For those of you surprised at the poor fuel economy, did you ever consider that the facts PRIOR to making your purchase? This is 3600 lb RWD sedan with a 300 horsepower motor. What part of that equation would ever make you think fuel economy is going to be any good?

If the G35 was lighter, fuel economy would be improved, but the car would be more expensive due to lightweight materials necessary to accomplish the weight reduction. For $35K give or take, this is by far the best RWD sports sedan around. The G35 serves its purpose well. It just gets a bad name from people that buy this car for the wrong reasons.

300 hp. + RWD frictional losses + 3600 curb weight = poor fuel economy

 

In theory what you say might make sense but with today's technology this isn't always true. For me I bought one of if not the first Sport in New England. So I had no history as buyers today do. Looking at the window sticker it says 18 city 28 highway. My '03 was averaging low 20's so I figured I should average low 20's with the new G.

If you look at the new Z06 Corvette with 505 hp those owners are getting highway mileage in the mid 20's. My '90 ZR-1 Corvette with 400+ hp got 25 mpg.

My new G is getting 14 mpg city and 21 mpg highway. If you look at the aero dynamics of the new G it is as good if not better then a Corvette. So to say a 300hp car like the G shouldn't get half decent gas mileage is incorrect.

What is interesting is the mileage for these cars are all over the place so either the gas in different areas are playing a big factor or some of us are just bad drivers. Or maybe there is something wrong in the computer programming in some of our cars?