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Reading a Tire Sidewall
Those who want to be more direct, of course, can DM. The latest to survive the strange pick-up tactic was a year-old woman in the Aichi Prefecture, Excite News wrote. While driving on June 11, she found that her rear right tire was flat after leaving it in a supermarket parking lot.
The tire date code always starts with the letters DOT and ends with a 3 or 4 The first letters indicate the type of tire: P for passenger car, LT for.
Every sidewall has its own unique information that is divided into four main sections:. This describes the fundamental characteristics of your tire. Size, construction, speed rating and more. This designates the type of vehicle the tire fits. P is for passenger metric. Why millimeters? It originated in Europe, which uses the metric system. The lower the ratio, the smaller the sidewall height, which means better cornering, but a rougher ride.
Other letters used are D, for diagonal construction, and B, for belted. This number in inches indicates that the tire is designed to fit on a wheel with a inch diameter. This indicates how much weight the tire is certified to carry at maximum safe inflation.
Reading a Sidewall
How to determine the age of your tires, or tire manufacture date on your tire, grab a flashlight and slide underneath your car to check the other.
Tire spec notation varies according to car model but primarily consists of symbols and numbers denoting tire width, aspect ratio, diameter, load index and speed symbol that indicate tire performance. E-mail Share this page to my friends. Your Information Message. Clear Fields. Tire Sidewall A tires sidewall protects the carcass on the inside and provides a comfortable riding experience due to its flexibility during cornering. Click the buttons for more information about the components of the tires sidewall!
DOT Department of Transportation. Product Name.
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.
Over one hundred years’ experience of tire technology has enabled Pirelli to combine in their products maximum levels of We recommend this section if you want to become familiar with the world of car tires. tire). 5. Date of manufacture.
To verify if your tire is affected by this program, check the tire sidewall inscription. The attached pictures provide samples of the relevant sidewall inscriptions. To see a list of tires affected by this recall, click here. Please see these instructions for an example of how to read a tire sidewall. There are four major components of the sidewall lettering which help to identify the tire:. Important: The complete DOT serial number including production date is visible only on one side of the tire.
What is the Shelf Life of Car Tires?
The date of manufacture is essential information for car owners and tire buyers because tires deteriorate even if they are not used. European automobile.
We respect your privacy. All email addresses you provide will be used just for sending this story. Make a tire check part of your regular car maintenance routine, because it can improve your safety and boost your car’s fuel economy. Consumer Reports encourages those traveling over the long Memorial Day weekend to follow these quick tips. To get the most out of your car’s tires, check their pressure monthly and visually inspect them for cuts, cracking, and bulges. Check the tread depth; it is recommended that you shop for replacement tires before the tires have become too worn down.
Shoppers can often get good deals when buying a full set. If you need only two new tires, place the new ones in the rear to help you maintain control on wet roads. Uneven wear across the width of the tire can be a sign that the wheels have become misaligned, possibly after hitting a pothole or road debris. If you see this, have a professional check the tires.
How Old — and Dangerous — Are Your Tires?
The width indicates the widest point of a tire from sidewall to sidewall. Some tires have a P or LT in front of the tire width, identifying them for passenger or light truck use. The aspect ratio is the dimensional relationship of the section height to the section width. Tires with an “R” indicate radial tire construction. The load index number and speed symbol correspond to the maximum load-carrying capacity of the tire and its maximum speed capability.
Prior to year three numbers are used for the date of manufacture. The first two numbers identify the week and the last number identifies the year of.
Luckily, you maintain control and safely maneuver to the side of the road. The tires are new, purchased a few months ago from a local tire shop. How could this happen to new tires? The fact is that all tires have an expiration date. Surprisingly, many consumers and sellers of tires do not know about tire expiration dates. An uninformed consumer thinks he or she purchased brand new tires when in reality those tires may have been sitting on the shelf for years. Even though the tires were never used on a vehicle, they are still several years old.
Every tire has a birth date—the day it was manufactured—and an expiration date that is six years from that manufacture date. Most automobile manufacturers warn drivers to replace vehicle tires after six years.
Tire Specs: Understanding the Numbers on Your Tires
At one location, a tire from was on display for sale. The last one visited had an entire set of tires made in and one tire that was 10 years old. As previously reported by ABC News, aged tires can present a hidden danger even if their treads are unworn and they haven’t been driven a mile. According to consumer and industry sources, as tires age the rubber can deteriorate and become brittle, leading to a possible tread separation.
Tires are coded with a U. Department of Transportation or DOT stamp followed by a four-digit number.
Decoding your car’s tire information doesn’t require flipping through This born-on dating can also be helpful when attempting to figure out if.
There is a shelf life to car and truck tires. Even when a tire is not being used, the rubber will weaken and crack over time due to environmental conditions, and just simply the age of the rubber materials. Over the years, many have experienced the unpleasant situations that arise when a car tire blows unexpectedly, either on the highway traveling at high speeds, or out in the middle of no where while taking a trip.
Many tire experts have come forward to say, and one British tire company even issued warning statements to their consumers, that tires that are ten years old or more should be replaced, whatever the obvious wear and tear may appear to be, or not to be. And for tires that do not get regular use, such as spare tires, they should be replaced every six years, again regardless of the wear on the tread. In the past years, there have been lawsuits pursued in the United States alone, wherein in tire problems have caused major car collisions.
One man stated that while he had not driven his antique vehicle for eleven years, and the tires had been new, he hit a small bump on the road and found himself and his car spinning down the street. He stated that the tires on his vehicle looked just fine, and appeared to be in perfect condition.
The evidence is clear: tires should have an expiration date. Older tires are substantially more likely to fail than newer ones. This is because tires are made mostly of rubber, and rubber degrades with age. Sunlight, heat, ice, and general wear and tear can accelerate the breakdown of a tire. Once a tire begins to break down, it becomes more likely to fail in the form of a tread separation—often at highway speeds, when the failure is most likely to cause catastrophic injuries or death.
For most tires, this expiration date should be six years from the date of manufacture.
Tire spec notation varies according to car model but primarily consists of symbols and numbers denoting tire width, aspect ratio, diameter, load index and speed.
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.
We recommend: All tires including spare tires that were manufactured more than ten years ago should be replaced with new tires, even if they appear to be usable from their external appearance and if the tread depth may have not reached the minimum wear out depth. Switch now to summer tires from Continental. You are here: Homepage Technology Tyre knowledge Tire age. Tire age What do you need to know about the age of your tires?