Readers ask: What Is Treadwear Rating On Tires?

What does treadwear 500 mean on a tire?

If the tire being tested gets a 500 – tread wear rating, that means it’s expected to take five times as long to wear out as the control tire. The tread wear grade designation is defined when the tire is run a 640 kilometer course for 11,520 km, with tread depths being measured every 1,280 to give a projected tread life.

How long will 200 treadwear last?

A tire rated at 200 has a projected tread life of 60,000 miles. A tire rated at 50 has a projected tread life of 15,000 miles.

Are 5 32 tires safe?

6/32″ or higher: Your tire’s tread depth is sufficient. 5/32 “: If snow-covered roads are a concern, you should consider replacing your tires. 4/32″: If you frequently drive on wet roads, consider replacing your tires. 2/32” or lower: Your tires are legally bald, and it’s time to replace them.

What does a 300 treadwear rating mean?

Treadwear grade: A government-required number that indicates a tire’s expected wear. A grade of 300 denotes a tire that will wear three times as well as a tire graded 100.

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What does 600 AA mean on tires?

In basic terms, and in the spirit of the concept, the higher the UTQG treadwear rating, the greater the tire life. A tire with a ” 600 ” treadwear rating is forecasted to last twice as long as a tire with a “300” rating, and should accumulate three times the mileage of a “200” rated tire.

What does 400 AA mean on a tire?

“UTQG” stands for “Uniform Tire Quality Grading”. Example: a tire with a UTQG of 400 AB. The 400 is tread wear which represents the tire’s comparative wear when measured against the governments mandated tire, which is rated at 100.

How many miles is a 600 treadwear rating?

A tire rated 600 AA with a 70,000 mile warranty is quite likely to live up to it.

What does Traction AA mean on a tire?

Traction grades are an indication of a tire’s ability to stop on wet pavement. A higher graded tire should allow a car to stop on wet roads in a shorter distance than a tire with a lower grade. Traction is graded from highest to lowest as ” AA “, “A”, “B”, and “C”. Of current tires: 3% are rated “ AA ”

How many miles is a 400 treadwear rating?

For example: One tiremaker’s 400 treadwear grade earns only a 40,000- mile warranty, while another’s 400 -level tire carries a 60,000- mile warranty.

Why do dealers overinflate tires?

Tires are overinflated during the shipping process, so as to help prevent the flat spot from forming in the tire as it sits for days on in during the shipping process. It is supposed to be part of the delivery check process that the service department deflates the tires to the proper pressure.

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Should I replace all 4 tires?

Is your car an all -wheel drive (AWD)? If so, most vehicle manufacturers and the Tire Industry Association (TIA) recommend that you always replace all four tires at the same time. That’s because the reduced diameter of the lower-tread tires causes them to spin faster than the new one.

Why are OEM tires so bad?

There are multiple reasons that OEM tires wear quickly. One reason is that the auto manufacturer’s recommended tire inflation pressures are not designed for the best mileage, but for the best ride.

How many miles is a 700 treadwear rating?

For example, a tire with a treadwear rating of 700 may last approximately 70,000 miles.

How many miles are tires good for?

As a general rule, the original tires on a new vehicle or quality replacement tires should last up to 50,000 miles. However, many factors will have a significant impact on any tire’s life and may substantially shorten its life expectancy.

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