六年是大限。網路文章和許多車輛製造商均建議不要使用任何六年以上的陳年（新）輪胎，橡膠老化是主因...

When shopping for a new set of tires take a look at the tires themselves. You will notice that on the sidewall there are a series of numbers in front of the word “DOT.” If you see the number 1214 that means it the tire was made on the 12th week of 2014.