Ozone checking meaning

Ozone checking definition

cracks or hard spots usually found on the sidewalls of tires. Caused by the action of the ozone in the air on the rubber. This condition is normal, but could be dangerous on tires that are more than 65,000 km (40,000 miles) old or have been exposed to the ozone created by electrical machinery.

Automotive Dictionary Index

Automotive terms beginning with "O", page 11

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