I've got just over 6,000 miles on my G35x and I've had to put air in the tires four times already. I've owned a lot of cars and never had this issue. Granted, I live in a climate that can get extremely cold (Wisconsin). I keep the pressure at 30psi which is what is recommended, right? Is there something wrong with my tires? Should I be worried or just put 5psi more into each tire. It seems each tire needs air when my little light goes on.

 

I live in about the same climate as you bro, and I would say that your situation is entirely normal.
With such wide swings in temp. (lately to the downside) you can expect to have to top off the tires regularly.

Are they all about the same, needing about the same few pounds?
4 times in 6k miles isn't excessive in my estimation.
I kept my Sedan slightly high at 31-32 lbs in anticitpation of colder weather.

Nice to see peeps are watching their tire pressures.
G.

 

Keep in mind that for every 10 degrees (F) drop in outside temperature, your tire pressure will drop 1 psi. Thus, as the temperature grows colder, it is necessary to add air to compensate (assuming you want to maintain 30psi)