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miker98038 · 12-08-2019, 12:29 AM

The tire pressure on the tire is the pressure for its maximum load rating, which is also listed. On most radials you can get away with that because the belt keeps the tread relatively flat. Most modern cars will show a recommended pressure below that. I was told some years ago by a friend in the tire business that that was a "ride" adjustment. He recommend to me that I use the rated pressure because of the way I drove. I never use that "rated load" pressure rating unless I'm doing something illegal.

My 10 year old daily driver came with "ultra high performance summer tires". It's not a sports car, just an overpowered econobox. Even it had a recommended pressure below the rating. They made 15,000 miles, driven gently. 4 hours on a track day, they were gone.

So, I run my tires where they feel and handle good, but below that max. Your results may vary. Watch the tread wear.

12-08-2019, 12:29 AM	#7
miker98038 Senior Member Join Date: Mar 2013 Location: Kent, WA. Tucson, AZ Posts: 1,397	Re: Radial and Bias Tires. The tire pressure on the tire is the pressure for its maximum load rating, which is also listed. On most radials you can get away with that because the belt keeps the tread relatively flat. Most modern cars will show a recommended pressure below that. I was told some years ago by a friend in the tire business that that was a "ride" adjustment. He recommend to me that I use the rated pressure because of the way I drove. I never use that "rated load" pressure rating unless I'm doing something illegal. My 10 year old daily driver came with "ultra high performance summer tires". It's not a sports car, just an overpowered econobox. Even it had a recommended pressure below the rating. They made 15,000 miles, driven gently. 4 hours on a track day, they were gone. So, I run my tires where they feel and handle good, but below that max. Your results may vary. Watch the tread wear.