The dealership keeps adjusting my tire pressure to 32LB. It drives me nuts. I keep telling them to leave my tires pressure alone and they keep messing with it. It got to the point where I made them take the car back and fill it back up to 40lb cold (winter) or 38lb cold (summer). <p>The tires can handle up to 51lb cold but I know that's only under full load conditions. Thus on a hot summer day with a full load and ther recommended 51 lb max the tire pressure can rise to 60lb. Sounds like they are designed with a large safety margin.<p>My personal prefference is for a stiffer ride and the liveliness that brings - especially at the rear. (no sexual innuendos intended!)<p>How is it possible that a single air pressure (32 lb) will work on all street cars of so many variable weights and performance categories? "32lb" sounds like a mantra that every single service technician sings whenever that subject is broached.<p>What does everyone else do? Do you find there is unusual wear under different pressures?

Tire pressure isn't determined by how the car feels to drive. <p>You should adjust the tire pressure till you have the correct contact patch. <p>With 40 PSI you will absolutely without a doubt run your tires bald in the middle. You are efectively putting a norrower tire on your car. <p>It will also effect the tires ability in the wet, lowering the tires ability to hold the road. <p>Listen to the dealer.

My tires read a max pressure of fifty-something pounds. I have heard a million times to put 32, and I have bought tires about 20 times, and each time they put 32 also. However, I recently was told to use about 40, just as Lorean expressed. I do not see the tire riding up on its center, as Jet Pilot indicated. Who is right? I know that the tire is the variable, as this is what actually holds the pressure. I also feel the ride a bit firmer with 40 pounds. I am on my fourth set of SP8000's on the front, and I have used 32 until this set. Anyone care to add value to my tire world?<br>Conker 98 1.8TS-tip

I am often frustrated by un(der)educated people pontificating on topics they know little or nothing about!<p>JETPILOT, please take the time to read some books on race car setup such as Carroll Smith's "Race to Win" and "Drive to Win" and then go to some track events and talk to the people with LOW lap times.<p>What you will find is that it has nothing to do with "feel" and everything to do with limiting sidewall wash (flex/scrub) and having the tire heat up to the manufacturer's designed pressure so it can achieve maximum stick!<p>What you can then do is go invest in a good tire pressure guage and tire temp guage to get a real understanding of what is going on with the tire. Vary cold pressures and see what it does to your hot pressures and temps and more importantly - YOUR LAP TIMES!<p> <br>

I am often frustrated by people who suck.<p>Hey mike when you get your head out of your books. You might learn something by experience as I have. I didn't read about tire pressures I use a pyrometer at the track. <p>But were not at the track. If you wish I will send you my last 2 sets of A008G's so you can examine them for even wear. <p>And I don't confuse a track environment with a street environment. Last time I read the commute to work was a little less deamnding than a lap at Nurenburg.<p>If you "READ" the post again you will realize that I stated that it has nothing to do with feel as you found it neccessary to reiterate.<p>This person is not setting up his car for low lap times. It is being "setup" to get him to work.<p>So put your book away and leave tire pressures to people who actually know how to use a pressure guage. <br>