![]() Internal components of tire (steel or fabric body plies) are visible.- Excessive washing or dressing using alcohol or petroleum based cleaners.- Exposure to high levels of ozone (smog, electrical generators).- Long periods of inactivity or storage.Appears as crazing and or cracking in the flex area of the sidewall.Weather cracking is common in RV tires from all manufacturers. Goodyear's warrantyįor weather cracking is four years from purchase date (or four years from manufacture date if proof of purchase is not Weather cracking is a naturally occurring condition that results from exposure to heat and sunlight. Goodyear advises that consumers refer to their owners' manuals for guidance on the vehicle manufacturer's replacement recommendations (but regardless of any such vehicle manufacturer's advice, any tire's replacement period should not exceed 6 years from the date the tire is placed in service or 6 years from the date included in the DOT code on the sidewall of the tire if you are unable to determine the date the tire was first placed in service). Various automobile manufacturers have published statements and instructions regarding tire service life, which include tire replacement recommendations based on chronological age. Automobile Manufacturers' Recommendations Also, consumers should never purchase or install used tires of any age on their vehicle as the service, maintenance and storage of used tires is largely unknown. Tires that should otherwise be replaced based on wear, damage or any other factor should not be kept in service regardless of the date they were first placed in service or their date of manufacture. If you are unable to determine the date a tire was first placed in service, then you should rely on the DOT code stamped on the tire and ensure that any tire which was manufactured more than 6 years ago is removed from service (see below for how to read a tire's DOT code). ![]() While most tires will be replaced sooner, Goodyear recommends that any tire in service (meaning inflated and mounted on a rim of your vehicle, including your spare tire regardless of whether that tire is in contact with the roadway) 6 years or more be replaced even if such tire appears serviceable and even if it has not reached the legal treadwear limit. Therefore, the older a tire the greater the chance that it will need to be replaced due to service-related or storage conditions. Although no widely accepted scientific research exists to show that chronological aging alone adversely affects a tire, and if so, how those effects occur, over what time period, etc., the longer a tire is in service, the more opportunities there are for it to be exposed to adverse environmental or service conditions. It is impossible to predict when a tire should be replaced based on its calendar age alone. Tire Replacement Guidelines Time in Service v.
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