I'm calling this an odd question for a couple of reasons but mainly because the door jam says 35psi and where I live (temperature). When I picked up my car I watch the service guy go over the car. Even saw him check all the tires and he put some air in two of them. While driving it home I was playing with the EVIC and saw I was running at 39-40psi. I immediately thought that was high but then thought "these are performance tires maybe they are suppose to be that high". when I got home I check the door and saw the 35 recommendation and figured they put too much air in. After doing searches in here I found out that psi will change much more than I though based on temp and they should be checked "cold". Here is where I'm confused though. I'm assuming "cold" means the tire itself right? Not the outside temp? I checked them yesterday with a gauge before I drove it and I was still at 38-39. After driving about 8 miles over to my girls house I checked them again and they read 38-40. Not much of a difference. I live in FL so the outside temp is almost always above 60 so that's where I'm confused with the "check when cold" part. Yesterday I dropped them down to 36 and they seem to be running about 37 now on the EVIC. Should I drop them down even more to run at 35? I initially thought they were set at 35 at the Brampton plant but now in FL they went up to 40 with the temp but then I remember seeing the service guy put air IN them. Im pretty sure I should be at 35psi but I just wanted to check here. Btw they ate the F1s and this is for street use not racing. Sorry if these question seem stupid because at first it seemed pretty clear cut to me but after reading about changing temperature and the guy putting air in the tires it threw me off of what should be pretty straight forward.