Actually Gene, the inflation pressure data are not usually printed on the tire. The specs on the tire refer to maximums. The proper running tire pressure is normally printed on a sticker on the inside of your driver door. It is usually, lower than the the maximum printed on the tire. In your case the difference might be 18lbs.The data is printed on every friggin' tire! The guy who did this inflates friggin' tires for a living! How do you F that up? How??