As we know, the M (35 or 45) isn't exactly known for it's gas mileage.
Here are some things that you can do to help yourself achieve better gas milage:
*** Note: Some of these may be minimal, but added together as a whole it will help - at least it has on past cars I've owned ***
If anyone finds any discrepancies in my suggestions above or wants to add something, post in here. This might be a good resource for our members as gas gets more expensive by the month.
				
			Here are some things that you can do to help yourself achieve better gas milage:
*** Note: Some of these may be minimal, but added together as a whole it will help - at least it has on past cars I've owned ***
- Clean all engine bay ground points
 - Clean throttle body (when you remove the rubber/plastic intake pieces and you get to the butterfly plate in the throttle body...clean that area. This did wonders on the VQ30DE in the Maxima that I owned previously.)
 - Run a fuel system cleaner every 10k or so (such as Gumout, Chevron Techron, Seafoam, etc.). Running them more often is usually a waste of money says Consumer Reports.
 - Change your PCV valve from time to time. I usually do it every 15k. It's not a terribly difficult job and I might make a HowTo thread on how to do it next time I do it. It's also a really cheap part.
 - Keep your oil clean
 - Keep your air filters clean
 - Keep your tires properly inflated (should be around 33psi on the M if I recall)
 - Make sure your spark plugs are in good health and properly spaced at .044mm I believe (example; if you have 80kmi on your car you should probably think about changing them)
 - Don't drive with a heavy foot
 
If anyone finds any discrepancies in my suggestions above or wants to add something, post in here. This might be a good resource for our members as gas gets more expensive by the month.