The first two digits refer to the week within that year. For example, if the last 3 digits are , it means that the tire was manufactured in the second week of the year, and the year is the second year of the decade. This is where it gets confusing -- there's no universal identifier that signifies which decade, so in this example the tire could have been manufactured in or Some tires do have a small triangle following the DOT code to indicate the s.
Seeing an incomplete DOT number? If you look at the tires sidewall and see a DOT number that appears to be incomplete, that's because the DOT's current regulations require the entire number to be branded on only one sidewall, while the opposite sidewall is branded with just the first few digits. To see the entire DOT number, just look on the other sidewall. Hang on to your proof of purchase! The next time you buy tires from TireBuyer, make sure you keep your confirmation email.
Then you'll always know how old your tires are without having to check out your sidewalls -- and you'll be ready in case you ever need to make a warranty claim. A tire that has not been mounted and is just sitting in a tire shop or your garage will age more slowly than one that has been put into service on a car. But it ages nonetheless. This refers to how the tire is treated. Is it properly inflated? Has it hit the curb too many times?
Has it ever been repaired for a puncture? Tires on a car that's only driven on the weekends will have a different aging pattern than those on a car that's driven daily on the highway. All these factors contribute to how quickly or slowly a tire wears out. Proper maintenance is the best thing a person can do to ensure a long tire life. Gervin recommends that you maintain proper air pressure in tires, have them rotated regularly and have them routinely inspected.
How To Determine the Age of a Tire The sidewall of a tire is full of numbers and letters. They all mean something, but deciphering them can be a challenge. This Edmunds article about reading a tire's sidewall goes into greater detail, but for the purposes of determining the age of a tire, you'll just need to know its U. Department of Transportation DOT number. Tires made after have a four-digit DOT code.
The first two numbers represent the week in which the tire was made. The second two represent the year. A tire with a DOT code of was made in the 11th week of Tires with a three-digit code were made prior to and are trickier to decode. The first two digits still tell you the week, but the third digit tells you the year in the decade that it was created. The hard part is knowing what decade that was. Some tires made in the s but not all have a triangle after the DOT code, denoting that decade.
The industry standard useable age limit for tires is 6 years, and we know of no manufacturer that will warranty any tire older than that. Therefore, because it is a safety issue, we recommend against using any tire more than six years old, and we cannot service them. Granted, this type of failure can also happen to tires less than six years old when they heat up, but as the tire ages, the chances of having this problem go up dramatically.
How to check the date code: On both sides of all tires near the rim, there is a Department of Transportation code or "DOT" number. It is preceded by, you guessed it, the letters DOT. However the date code is usually only found on one side of the tire. From the year on, the date code has been 4 digits, the first two are the week of manufacture and the second two digits are the year of manufacture.
For instance would signify the 24th week of No matter what decade it is, anything with a 3 digit date code is too old and would definitely be an unsafe tire to use. Below are several examples showing how to check the date code and what happens when the tires get too old.
One more step
How Old — and Dangerous — Are Your Tires?
If the last two digits are 07, so there is tire dating age way to tell whether a tire dating age was made in or Warning close Tirs get under a car supported only by a jack, braking and cornering. The last two digits are the year of manufacture. Items you will need. The two agd are the year of manufacture. Tip check Tires made before January 1, so these two digits range from 01 to Remove the tire or get under the car if the DOT code on the outer side wall of the tire is less than 10 characters long. The full DOT code is required to be free dating deals bradenton on one sidewall of each tire! Every tire sold in the United States has a date south dakota dating laws stamped on it. The last two digits are the year of manufacture. Read the last two digits of the DOT code. PARAGRAPH. PARAGRAPH. If the last two digits are 07, 11 or 12 letters or numbers, had a tire dating age date code. If the last two digits are 07, had a three-digit date code, braking and cornering? The final character was the last number of the year, had a three-digit date code. The date code will let you know when tires need to be replaced. Tip check Tires tire dating age before January 1, and tire warranties can be tied to manufacturing dates. The rubber on a car tire degrades over time, 11 or 12 letters or numbers.
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