I get just below 20 living in NYC with mostly city driving.
I get about 24 on the highway.

Just about all with Auto AC on.

 

My last two tanks averaged 26.4 mpg for all highway mileage. My last 04' Maxima got better mileage as the car got older and max out around 3 years old. I am hoping the same will happen with this new Maxima. 1100 miles and counting!

 

25.4 mpg with 90% rush hour expressway driving 20 miles at 45 mph. They other 10% is getting to/from home.

 

The one thing you left out is how far are your trips? Keep in mind any engine enriches the mixture while cold, so if your trips are short, your mileage will be poor. That is why the new Prius uses coolant circulation around the exhaust to warm up the car quicker for better mileage. If your trips are only 4-5 miles, less than 10 MPG can probably be expected.

 

Excellent point about trip length. Also interesting fact about the Prius. I did not know that.

 

i have 4500 on the odo and i am averaging 22.6 mpg mixed but mostly city

 

My commute is 25 miles one way, half local roads, half highway.
I average about 25 mpg +-1mpg. Using premium gas.

 

i just got back from my "first" weekend road trip (90% highway). 440 miles total, filled up the tank when i got home and it was about a 27mile/per gallon.

 

I just got back from the longest trip so far with the Max, 600 miles each way, from Little Rock to San Antonio. I now have over 6000 miles on her and am very happy with the gas mileage. The overall gas mileage (total miles driven divided by total gas used) is 24.92 MPG. The lowest was 21.09 (all in town) and the highest was 28.97 MPG, all interstate with 30 minutes of stop and go through Austin, Texas during the rush hour. The in-car MPG calculation is pretty good with an overall average of .44 MPG greater than the actual gas mileage. The overall gas mileage for the 2004 2.5S Altima I traded was 27.59 MPG, a 2.67 difference between it and the Max. I am very happy with that!

 

yep my trips are always short about 4-10 miles daily everytime i use the car

 

and keep in mind this is all with the ac on, that i average 170 miles to the tank

 

SA has 93 octane...and you're not going to see any difference; the reason for the lower octane rating available in different states is due to elevation. Octane is a rating on how well the gas can hold up to compression without spontaneously igniting (which causes pre-detonation, or knocking, in IC engines). Your MPG will not be affected by a different octane rating unless your engine was pulling timing due to knocking (which ours will do if you use low grade gas)

The problem with this statement is that most cars don't take the same amount of gas at every fill-up. How many gallons do you normally put in? Even if you only put 10, that's still 17 mpg which is terrible. Do you floor it everywhere? Do you idle 90% of the time? There can be a lot of things that can cause bad gas mileage that aren't the vehicle's fault.

 

I get about 18 mpg here on Long Island. I am still in the new user mode!
I have 2200 miles on the car but I still feel the need to "explore" the potential of my Max!

 

Usually everytime i fill up, i usually let it get to about a quarter of a tank then ill fill up. And no lol i dont floor it everywhere....and i do idle alot. I have a friend who drives like an 09 max as well, and he gets about 200 miles to the tank ,and he drives alot slower than i do. And we both live in nyc

 

i also must add i agree with LA02max because there are many factors that cause bad gas mileage that arent the vehicles fault, including stop and go traffic and idleing alot, and thats mostly what i do which contributes to such poor mpg

 

At 9 mpg, you would be driving a Hummer?

Try recalculating using number of gallons consumed instead of volume in the tank.

To do so, top off the tank, reset the trip odometer and drive is till it is down to say 1/8 left. At the next fill top off the tank again and write down the number of gallons needed to top of the tank again. Then, do the math (miles driven / gallons used) to calculate fuel economy. This is more accuate than using the one in the nav system which is calculated using injector size and duty cycle.

Using your calculated result, you can then determine miles to the tank more accurately knowing the volume in the tank. In reality though ... the tank probably cannot be totally drained.

 

yea ill try this next fill up

 

And this is why I don't buy used cars...
(or lease!)

 

[QUOTE=LA02MAX;7160434]
SA has 93 octane...and you're not going to see any difference; the reason for the lower octane rating available in different states is due to elevation. Octane is a rating on how well the gas can hold up to compression without spontaneously igniting (which causes pre-detonation, or knocking, in IC engines). Your MPG will not be affected by a different octane rating unless your engine was pulling timing due to knocking (which ours will do if you use low grade gas) QUOTE]




LA02MAX - You are wasting your time trying to convince folks here they won't get much better MPG with 93 octane.

You know you are correct, and I know you are correct. But almost everyone here on the ORG is convinced 93 octane beats 91 octane in every way mileage can be measured. Which seems a little strange when we consider that Nissan tells us right up front that this engine/fuel system on the '09 Maxima was designed, tuned and built to give its optimum performance with 91 octane.

Any person who has kept up with fuel technology over the past sixty years has to know using octanes higher than that for which a properly tuned engine/fuel system was designed results in no measurable MPG benefit.

But even before the internet arrived, and millions of myths suddenly became 'fact', urban legends have always equated MPG with octane. I think I understand how the Salem witch burnings came about; mythology always trumps technology.

 

20-24 city, 24-25 highway with an 01 5 speed.

 

only had the car for 1 1/2 weeks .. and have built up an average (as stated by the max's comp) 16.4 mpg ( 90% city,, lots of lights and stop signs ).. i know i can do much better tho

 

09 Maxima John

I feel the pain...you got a bad deal there. I remember getting taken the first time I leased (not as badly as you however) and I swore that it wouldn't happen again. With all of the info that is available on the internet today, we are in a much better position to negotiate. This time around I started the process six months ahead of my lease expiration and just stood my ground until they met my terms. Not that that helps you now. I don't have any answers for you and your situation. But I know that there would be one car dealer crossed off my list for future business.

As far as mptank, I'm getting around 400 in mixed driving; usually 22mpg.

 

My car is used for mostly interstate driving now as my daily driver gets the around town BS.

I have noticed that the winter blend of gas takes it's toll. Count me at 23 mpg which includes a few "runs" when necessary

 

After 600 miles I am getting around 19MPG. 60% City 40% Hwy

 

Which reading is correct? The reading on the speedometer gage or the reading on the radio screen? I see a major difference in both when reset at the same time. Anyone notice this?

 

Trust the old-fashioned method at fill up. (miles driven /gallons)

 

I do a mix of driving... from farting along in the burbs at 35-55 mph, to flying on the tollways at 90-100mph. So far, I have 22076 miles logged since I purchased my Maxima in November 2008. I've gone through 1105.39 gallons of gas. Minimum mpg for a tank I've achieved was 16.91mpg, and best was 24.73 (cruising on a 3000 mile trip last summer). Average fuel economy has been 19.97mpg. I've been doing an average of 50.98 miles per day. Overall, fuel mileage is pretty decent. I think I achieved about the same mileage in my 03 350Z Track, 07 G35S Sedan, and 08 G37S Coupe I owned prior to my Maxima (I know, a lot of cars, all since 2006, don't ask).

 

Anyone? Anyone? Bueller? Bueller?
I'm experiencing the same situation. Do the different screens calculate MPG differently? Inquiring minds want to know.

 

10062 miles driven and 402.774 gallons of fuel used = 24.98 MPG. The lowest mileage per tank has been 21.09 and the best has been 28.97. The in-car mileage reading is pretty close, sometime high and sometime low but averages less than .2 MPG difference. I'm ok with that.

 

I drive 2010 SV and have a 30 mile commute each way 90% highway and have 1000 miles on the car. Most speeds are 30-70 depending on traffic, I am getting 26-28 MPG and very happy with the car. I can get 93 octane here in Atlanta. tried 1/2 tank of reglar on 1st fillup and did not like how the car ran, since then only premium fuel.