If not — you should. They may last another three years, but your tread has little to do with it. What is more essential is the age of the tire. Tires are made of rubber, obviously, and when rubber gets old, it starts to dry and crack often times from the inside out — this process is not always visible to the naked eye. Until recently, I had no idea that the age of the tire mattered. I thought it was all in the tread and visible cracking. I also had no idea that tires have a manufacture date stamped on them. It turns out that tires have cryptic codes on them.
Your tire’s information
A frequent question about tire maintenance concerns service life. How long will your tires last before you should replace them? The answer depends on different factors such as your driving style, the tread design of the tire, regional climate, road conditions, and how frequently the car is in use.
The National Hi still have “x” years to go before they are “too old.” ghway Traffic Safety dministration (NHTSA) “Tire Identification ote: tires manufactured before July.
October is usually the start of the fall season sale promotion that encourages consumers to buy winter tires. However, new sale gimmicks are a good opportunity to inspect or replace the old tires on your vehicle. As a consumer, you must be aware that the new tires you are buying are actually new and not unsold inventory. New tires that have been in storage for several years can unintentionally be sold to customers as brand new tires.
Buying new tires that are already years old is sort of like buying food that is already near its expiration date. Plus, you run the risk of paying for old rubber.
How old are my tires?
Automobile tires are described by an alphanumeric tire code in American English and Canadian English or tyre code in British English , Australian English and others , which is generally molded or moulded into the sidewall of the tire. This code specifies the dimensions of the tire, and some of its key limitations, such as load-bearing ability, and maximum speed. Sometimes the inner sidewall contains information not included on the outer sidewall, and vice versa.
The code has grown in complexity over the years, as is evident from the mix of SI and imperial units, and ad-hoc extensions to lettering and numbering schemes. Most tires sizes are given using the ISO Metric sizing system.
Not sure how old your tires are? We can show you exactly how to find out. Look for a number that starts with the letters DOT followed by a series of
This quick guide will help you find the manufacture date of your tire and understand how Tires Easy handles tire age based on the DOT Code. Keeping a record of your tires and understanding their age will help you save money on repairs and take proper care of your vehicle. It tells you who manufactured the tire, where it was made, and other tracking information. The raised numbers of the DOT Code are placed together and often enclosed in a raised oval. The first two numbers are the week the tire was manufactured.
In the image below, we see the 07, indicating the tire was build in
Know the Expiration Date on Your Tires
When it comes to tires that still have a bunch of tread life, how old is too old? I know that too many of us do not pay enough attention to our tires. How often do any of us get down on the ground and really inspect that tread? Not often enough. What about the age of your tires , though? They can look like they have plenty of life left and still fail you at a critical cold-rain, coming-in-too-hot moment.
The date code is stamped into the tire near the “DOT” stamp. It is a four-digit code which indicates the week and year of production.
Want to know how old your tires are or what size your tires are? You need to know how to read tire sidewall information, the alphanumeric code stamped on to the side of your tires. But if you’ve ever looked at the sidewall of a tire and thought that the blizzard of numbers, letters, and words was as confusing as hieroglyphics, we understand.
The alphabet soup on tires’ sidewalls can be off-putting, but it’s pretty easy once you know what you’re looking at. Beyond the brand Michelin, Continental, Hankook, etc. Not to worry. Let us be your Rosetta stone to deciphering the language of the tire sidewall. The numbers highlighted in pink on the sample tire below correspond to the explanations that follow. In this case, the tire is millimeters at its widest point when it’s mounted on a wheel of a specified width.
This tire’s sidewall height is 40 percent of its width.
Tire Known Unknowns: Decoding the Date
How old are my tires? DOT date code tells you. Are you concerned about the age of your tires? Worry no more! After this quick guide you will clearly understand how to find the manufacturer date of your tire and how tire age is handled based on the DOT date code. To find your tires are you need to find the DOT date code on the tire.
For tires manufactured prior to the year , three numbers instead of four indicate the date of manufacture. Also, during the early ‘s, Continental added a.
Because safety is our top priority, the National Highway Traffic Safety Administration and the Department of Transportation want to make sure you have the tools to avoid being in vehicle crashes. The only thing between you and the road are your tires. TireWise provides drivers with information about buying tires, tire maintenance and labeling, aging, fuel efficiency, and tire retailers.
TireWise is also a resource for tire manufacturers, sellers and other partners to provide essential information to consumers for choosing and caring for their tires. This video highlights the importance of checking tire pressure, rotating tires, and checking tire tread. But we also need your help.
Breaking Down the Numbers on Your Tires
The chronological age of any tire can be found on the tire sidewall by examining the characters following the symbol “DOT”. The last four numbers identify the date of manufacture of the tire to the nearest week. The first two of these four numbers identify the week of manufacture which range from “01” to “53”. The last two numbers identify the year of manufacture e. For tires manufactured prior to the year , three numbers instead of four indicate the date of manufacture.
For example, a tire with a DOT of XXXXXXX has a manufacture date from the 27th week of Some points to note about older tires. Be aware of the.
The DOT number, an alpha-numeric code found on the tire sidewall, has consistently confused consumers and tire professionals. The last four characters of the character code contain the week and year the tire was made. For example, signifies that the tire was made during the third week of Tires made prior to used a three-digit date configuration at the end of the DOT code. In those cases, signifies that the tire was manufactured during the third week of — or the A change is necessary because safety is involved, particularly the tire aging issue.
One limiting factor to making the date more apparent and easier to use is that tire manufacturers are currently required to give the DOT number as specified by law. At the same time, manufacturers have a responsibility to ensure that consumers are provided adequate information for safe use of the product. Taylor said that one of the most striking observations was that the study participants came to the task ignorant of the DOT code itself.
These results should surprise no one. SRS pressed the agency to adopt a consumer-friendly date of manufacture for seven years. And the National Highway Traffic Safety Administration has promised to consider the issue, as part of a tire performance standard.
DOT Date Code & Tire Age Explained
If you’ve ever wondered how old your tires are, it’s an easy bit of information to find out. Tires actually have a “born-on” date, and it’s listed right on the tire itself. Almost everything you need to know about your tires is molded into the sidewall and coded according to federal requirements, including the specific week and year when a tire was made.
If you’ve ever wondered how old your tires are, it’s an easy bit of information to find actually have a “born-on” date, and it’s listed right on the tire itself.
This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Registered in England and Wales. Number Wayne Wenzel Nov 09, SRS President Sean Kane said rubber can begin to degrade after six years even if the tires have never been used. It turns out most passenger vehicle tires already have a date stamped on them.
The date is a small tag placed in the mold and it is formed into the tire sidewall when cured. These usually have the week of manufacture and the year although some manufacturers might use weeks based on a fiscal year.
How Old Are Your Tires?
The structural integrity of a tire can degrade over an extended period of time. When that occurs, tires are more prone to catastrophic failure, which could, at best, cause an inconvenience, or, at worst, lead to a crash. The degradation of a tire occurs over time, mostly the result of a chemical reaction within the rubber components. That aging process can be accelerated by heat and sunlight. Does climate have an effect on the aging of tires? NHTSA research suggests that tires age faster in warmer climates.
When tires get old, the rubber loses is elasticity (gets hard) and then when the tire heats However the date code is (usually) only found on one side of the tire.
Tires are of vital importance since they are the only part of the vehicle that makes contact with the road. Yet motorists often neglect their condition and age, and the results can be catastrophic. In its most recently available information, the National Highway Traffic Safety Administration says that people died in from tire-related crashes. As a tire ages, small cracks in the rubber begin to develop over time, appearing on the surface and inside the tire. This cracking can eventually cause the steel belts in the tread to separate from the rest of the tire.
Tread separation can also happen to defective, underinflated and poorly maintained tires. Hot climates will also accelerate the aging process. Carmakers and tire manufacturers differ in their recommendations on when to replace a tire. Many automakers, including Ford, Nissan, Mazda and Mercedes-Benz, tell owners to replace tires six years after their production date regardless of tread life.
Brands such as Continental and Michelin say a tire can last up to 10 years, provided you get annual tire inspections after the fifth year. The NHTSA has no specific guidelines on tire age and defers to the recommendations of carmakers and tire manufacturers. Department of Transportation number printed on the sidewall of the tire. Tires made after will end in a four-digit code.
Why having old tires on your car is a safety risk
Tires have very useful information molded onto their sidewalls. It shows the brand and model name of the tire, its size, whether it is tubeless or tube type, the maximum load and the maximum inflation, safety warning s , and much more. The load index should not be used independently to determine replacement tire acceptability for load capacity.
that unused tyres should not be put into service if they are over six years old and that all tyres should be replaced ten years from the date of their manufacture.”.
Tires, like most other auto parts, are built to withstand a great deal of wear and tear. Unlike other car parts, however, tire manufacturers always give an estimate for about how long a tire should last. The estimates themselves can range greatly for each tire, but you’ll usually see a manufacturer listing of how many tens of thousands of miles you may expect out of that particular tire. When it comes to car part longevity, however, there are always circumstances when the auto part information given by a manufacturer may not apply.
In the case of tires, the estimate of how long a tire can last is based primarily on the tread wear. But some safety advocates want to add an expiration date of six years onto each tire, regardless of how much tread is left on them. The reason for setting up this six-year standard is that some research has shown that after that amount of time passes, tire failures dramatically increase. Although there isn’t a set expiration date as of yet, companies like Ford Motor Company already encourages its customers to scrap their tires if they’re more than six years old [source: Holguin ].
But how can you determine the age of a tire?