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I'm still a ways off from putting our steelies on for the winter, but I got to thinking about this the other day and figured I'd post about it now before I forget.So, both our '09 GTs obviously have the stock 18" wheels and tires. The sticker on the driver's side door jamb recommends 32 psi for the 215/45/18 tires, so that's what I keep them at. Last winter I kept our 205/55/16 tires at 32 psi as well, but I got to thinking, should I actually be keeping them at 35 psi which I have read on here is the recommended psi for the stock 16" tires on the '09 Bases?Any information and/or opinions is greatly appreciated. Thanks in advance.

My door jam says 32psi for the stock tires.

between 32 and 35 psi. If you are seeing more wear on the center of the tire than the sides, then I would suggest a lower psi (32) if there is more wear on the outer edges than the center I would suggest a little higher psi (35-37).If they are wearing even then I would keep them around the 32-35 mark.

But I ran my Firestone winterforce at 40psi (max 44psi) all last winter with no problems!!!

Okay, I guess I'll keep them at 32 than. Thanks guys!

Quote, originally posted by J_TO_ENVY »Okay, I guess I'll keep them at 32 than. Thanks guys!Seems to me that 34 psi is the recommended psi for the 2009.

Quote, originally posted by jake75 »Seems to me that 34 psi is the recommended psi for the 2009.My bad - just checked. It does say 32 psi. I still favor a little over rather than a little under.

Quote, originally posted by star_deceiver »But I ran my Firestone winterforce at 40psi (max 44psi) all last winter with no problems!!!Jus cause you did it and it worked, doesn't mean it's recommended.. lol..