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Use that information to make sure you're buying tyres with the longest shelf life possible.(Lea en español) In addition to the tire's brand and line names (tire model), there is a lot of information provided by the manufacturer on the sidewalls of the tires they produce.
Infrequent use or poor storage can accelerate the ageing process and make tyres unroadworthy.
Low mileage, older cars tend to be most at risk from premature ageing." The date your tyres were made will be on the sidewall in the form of four numbers usually preceded by the letters DOT.
These numbers represent the week number and year, so 3410 will be week 34, 2010.
The issue came to a head earlier this year when Maryland debated a bill to require Maryland tire dealers to give consumers a printed statement on the dangers of tire aging whenever they sell a tire that is more than three years past its manufacture date. Should a tire be taken out of service because of age even if it has tread life remaining?
There are multiple and complex issues at stake here. If a new tire is stored for a long time should it be sold with a warning label or not sold at all?
Since some shops stock old tires, check the age code to make sure you're not being sold ones that are already several years old and well on their way to needing replacement. But think those called "high-performance" or "ultra high-performance" are better? Tire performance means ability to handle well at higher speeds, not lifespan. Manufacturers often tout mileage warranties — typically between 50,000 to 80,000 miles, depending on tire type.