Treadwear 440 how many miles

Tire treadwear is about much more than how frequently the tires need to be replaced. How rapidly tires wear down speaks to how soon they will transition from providing optimal grip to losing their ability to divert water and avoid hydroplaning.

Treadwear is a cost, convenience, and safety concern. Our research tells us that when people shop for tires, their primary considerations are all-weather grip, brand, and treadwear warranty.

How well a tire holds the road, in various weather conditions, is a core element of the Consumer Reports test program. That information is available on the tire model pages , and the cumulative results are available in our annual Tire Brand Report Card.

The treadwear warranty can be located on the CR. Nearly all tires carry some form of warranty from the manufacturer for defects.

These policies are referred to as workmanship and material warranties. But those warranties are influenced by marketing decisions, rather than product transparency. For instance, some warranties are a bit conservative to direct buyers to more profitable models.

Learn more about tire warranties. The only way to truly predict how long a tire will last is to test it. That is exactly what Consumer Reports does with an extensive on-the-road program that measures the wear on two tires per model of driving to 16, miles on public roads through the scrub grass of West Texas. We list projected mileage based on how tires wear in our tests on the tire model pages. See our tread life mileage, and much more, in our tire ratings. Noteworthy in the findings is that more than half of the 26 all-season and performance all-season tires could last at least 65, miles; five could top 90, miles or more.

Learn how to extend tire life. The higher the number the longer the tire should last if its parameters are all met, i. Treadwear grade. A grade of denotes a tire that will wear three times as well as a tire graded Most manufacturers typically recommend rotating your tires every 5,, miles, or at the same time as your regularly scheduled oil changes.

You really cannot rotate your tires too often with the exception that rotating tires does cause some where on wheel studs and lug nuts.

However, that is less of an issue than replacing tires too often. Tire Rotation refers to moving the wheels and tires to a different position on the vehicle.

Most most common recommendation is to rotate the tires every miles. If you wait too long, you lose the benefits of rotating the tires regularly. Your tires can develop a permanent wear pattern that can create a rough, noisy ride and will reduce the life of your tires. Performing dangers If the tires are not rotated properly, with time, the front tires will sport greatly lower tread depths than the rear tires. Upvote 4 Downvote 4. The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test track.

A tire graded would last twice as long on the government test course under specified test conditions as one graded A system developed by the Department of Transportation, which helps consumers compare and rate tires on tread wear, traction, and temperature. Tire manufacturers give their own tires a grade for treadwear , traction and temperature. Together, these numbers makes up a tire's UTQG rating—a three-digit number plus two letters.

For example, A A. Michelin was a standout in our latest tests. The three Michelin models we rated all met or exceeded their mileage warranty. But the longest-wearing tire came from Pirelli. Treadwear grade. A government-required number that indicates a tire's expected wear. A grade of denotes a tire that will wear three times as well as a tire graded But the numbers are assigned by tire manufacturers, not an independent third party.

The treadwear grade is a comparative rating based on the wear of a tire when tested carefully under controlled conditions. For example the useful tread on a tire graded should last twice as long as a tire graded This rating represents the tires ability to stop on wet pavement as measured under controlled conditions. A tire marked C traction may have poor traction performance.