Nice link!

If one were to modify the alleged dealer's statement to say "now that it's warming up, you may want to check your pressure and remove air if necessary" then it would be a fair statement.

I run mine close to ~ 35psi for ~ 75C ambient but don't adjust them all that frequently.

My experience is any shop that adjusts the tire pressure either over or under shoots by ~ 5psi. After I get the car home, next morning I always check & adjust.

 

My car is filled up at 45psi no wonder it drives like crap

 

The highest I fill is what is says on the door (35psi front and 36psi rear, cold tire), but in the summers I drop it to 33/34 so that the highest they go after driving is 38 (staggered set up with 19's).

 

the door tire air pressure number is when the car is cold in the morning. for example I set my tire pressure in the morning because when tire is hot tire pressure increases, so its better to set the psi in the morning when its cold.

 

Still having reading comprehension problems I see, maybe this will help: https://www.hookedonphonics.com/ & here is what I stated: Tire psi specs are @ assumed 70 degrees & changes 1 psi for every 10 degree change, upper or lower. Tire spec sticker is on the driver's door jamb. I realize it assumes 68 degrees but people seem to remember 70 degrees more easily.

 

You are just as wrong as the first time you came up with that nonsense.

Your ignorance is very glaring for all to see...

 

I'm not sure why the hostility or where you get your info, as it's fairly well documented that "cold air inflation pressure" is not based on a single temperature number, it is based on the ambient conditions of that day.

Are you suggesting for our friends in the great white north that they should set their tire pressure to 35 PSI in a 70F heated garage, then go drive outside in the 20F winter and be happy with the softer ride of their -5 psi tires?

 

Does that solve your issues with the car being stiffer than every other one you've driven?

 

This one does feel stiffer then my last Fsports but that being said this car has Michelin tires last one had Bridgestone pole position.

 

45psi is WAY too much. Let some air out.