What is the DOT code on a tire?
The DOT serial number located on the inside sidewall near the rim. The letters “DOT” are followed by eight to thirteen letters and/or numbers that identify where the tire was manufactured, tire size and the manufacturer’s code, along with the week and year the tire was manufactured.
How do you read old tire date codes?
The first two digits of the date code tell you the week that the tires were built, and the last digit tells you the year. For example, a date code such as 306 would let you know that the tire was built in the 30th week of a year ending in 6.
Is a 20 year old spare tire safe?
Most full-size spare tires are designed to last anywhere from seven to 10 years, according to John Paul. That said, drivers should never use a tire with visible damage, such as cracks in the sidewall, punctures, impact bulges or irregular tread wear – all of which are dangerous to drive on.
Are 30 year old tires safe?
Per BRMA, unused tires over six years old should never be put in service, and all tires should be replaced after 10 years from their date of manufacture. JATMA recommends inspection after five years and replacement after 10, regardless of treadwear and overall condition.
How do you decode a tire code?
When the tire was made: Every tire has a Department of Transportation (DOT) number after the letters on the sidewall. The last four digits determine the week and year the tire was made; for example, the digits 2321 would signify that the tire was made during the 23rd week of 2021.
How long are tires good for in storage?
six years
Tires can last for several years in storage if they are stored in the right conditions. However, many tire experts recommend replacing tires six years after their production date regardless of the tread. Old tires can be compromised in other ways when the rubber compound breaks down.
Can I drive on 15 year old tires?
Old tires are dangerous, regardless of tread depth. While there’s no federally sanctioned safety guidance on when a tire is too old to be safe, many carmakers recommend replacement at six years from the date of manufacture. Old tires have been the culprit in fatal accidents.
Are 5 year old tires still good?
Industry standards recommend that 10 years old tires are absolutely unsafe and should be removed from storage. However, early signs of deterioration start once tires cross the 5-year mark. As a result, manufacturers and mechanics warn against the use of 5-year-old unused tires.
Can I use 15 year old tires?
Should you buy your tires at NTB?
With many stores, a reach that spans several states, and no shortage of advertising and promotion, NTB is an auto service chain that most people have at least heard of before. If you are in the market for new tires and there is a store near you, NTB is certainly an option. So should you buy your tires at NTB?
What does NTB stand for?
National Tire and Battery, or NTB as it is more commonly known, is a highly visible chain of auto service centers with locations scattered throughout several states.
Is NTB owned by Sumitomo?
About NTB. In 2005, TBC was purchased by Sumitomo Corporation of America, which is the largest subsidiary of the Japan based Sumitomo Corporation. As of today, TBC Corporation still functions as an independent company of Sumitomo.
What is the National Transportation Safety Board?
The National Transportation Safety Board is an independent federal agency charged by Congress with investigating every civil aviation accident in the United States and significant accidents in other modes of transportation — highway, marine, pipeline , and railroad.