My 03 maxima drives at local with gas mileage only 16miles/gallon. Is it too low? The value given by Nissan is 20miles/gallon.

 

they quote thier mpg with a conservative driver.... if ur driving style differs than thats the 4 mpg. are u using the on board mpg calculator or figure them by how many miles/gallons?

will

 

This figure was calculated by myself. Also I have a problem with the on board mpg calculator. That figure doesn't change no matter how fast or slow I drive. Is it right? Thanks a lot.

 

I get about 19-20 city.

 

i used to get 16/17 local also. I resetted my ECU and I have been getting 19/20 local and 23/24 highway

I just filled up yesterday and had a 23.2 mpg (which i calculated myself)

Reset your ECU (search here on how to do it for the 02/03) and you will get better gas mileage and no lag (if any)

 

In my 2K1: I get 20 to 23mpg only city with a very conservative driving(3000Rpm on 1st and less then 2500rpm for the other: never to the floor though)

 

What is ECU? Could you give me more details?

 

summertime i get around 26-28 depending if i have a lead foot. now its down to around 22 with the colder weather

 

okay..here are the instruction on how to reset your ECU
MAKE SURE YOUR ENGINE ISN'T ON

here is the link to the instructions: http://www.technosquareinc.com/350reset.htm (it says 350z but it works with our 2002/2003 maxima as well)

1. Confirm that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
2. Repeat the following steps (2a and 2b) procedures quickly five times within 5 seconds.
2a. Fully depress the accelerator pedal (HARD).
2b. Fully release the accelerator pedal.
3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the CEL starts blinking.
4. Fully release the accelerator pedal (while the CEL is still blinking)
5. Wait about 10 second.
6. Fully depress the accelerator pedal and keep it for more than 10 seconds.
7. Fully release the accelerator pedal (The CEL light will continue to blink).
8. Turn ignition switch to “OFF” position and now you can start the car. The CEL light should be gone.

If the CEL light continues to remain ON, repeat the above steps. Timing is EXTREMELY critical to resetting the ECU.

Good Luck (not really needed but hopefully it works out for you)

Try searching: Resetting ECU, technosquare, reset ecu

 

i reset mine and i'm getting the same exact gas mileage hmmm

 

21 average with my 2000 SE running reg 87
Mashing it every day

 

Wow that is low. I have an '03 and I make 19 to 20 in the city!

 

I average 23-4 mpg at 90mph on road trips.

 

The absolute worest MPG I got in city is 20MPG, average its around 21~23

6spd 2k2

 

Wow, you guys seems kind of low. I get 24 or so during the week...mix of highway and city. On one trip this weekend, about 80 miles highway, I got 31-32. Buts thats based on what the computer is telling me.

Is the computer off?
I've never calculated myself since the Max calculates it for me.

 

Don't use the calc! Check real gas mileage.

 

 

what exactly are you showing us??