2nd November 2019

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What does treadwear 440 mean?

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 200 would last twice as long on the government test course under specified test conditions as one graded 100.

In this regard, what does UTQG 400 AA mean?

"UTQG" stands for "Uniform Tire Quality Grading". A system developed by the Department of Transportation, which helps consumers compare and rate tires on tread wear, traction, and temperature. Example: a tire with a UTQG of 400 AB.

What is UTQG treadwear?

The UTQG rating system originated in the US as a way to help consumers make more informed tire-buying decisions. 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, 500 A A.

Which brand of tires last the longest?

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. We estimate that the Pirelli P4 FOUR SEASONS Plus could last a whopping 100,000 miles.

What does 300 treadwear 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. But the numbers are assigned by tire manufacturers, not an independent third party.

What does treadwear number mean?

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 400 should last twice as long as a tire graded 200.

What does 500 AA stand for on a tire?

Over 500= about 80,000 miles. 5. Traction – The traction grades, from highest to lowest, are AA, A, B, C. 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.

How many miles does the average tire last?

CARS.COM — When do you need to replace your tires? We would expect at least 50,000 miles from the tires that come with any new vehicle, but tire life depends on many factors. Here are some broad guidelines.

How many miles does a set of tires last?

If you drive a typical number of miles, somewhere around 12,000-15,000 miles annually, a tire's tread will wear out in three to four years, long before the rubber compound does. But if you only drive 6,000 miles a year, or have a car that you only drive on weekends, aging tires could be an issue.

What tread depth to replace tires?

The Tire Rack's advice is that if rain and wet roads are a concern, you should consider replacing your tires when they reach approximately 4/32" of remaining tread depth. Since water can't be compressed, you need enough tread depth to allow the rain to escape through the tire's grooves.

What is a good tread depth on tires?

Tread depth is a vertical measurement between the top of the tread rubber to the bottom of the tire's deepest grooves. In the United States, tread depth is measured in 32nds of an inch. As mentioned above, tires are legally "worn out" In most States when they reach 2/32" of remaining tread depth.

How often do you need to change your tires?

Most tires are considered to have a life of between 25,000 and 50,000 miles before they need to be replaced. However, these numbers are only averages. A car owner's manual can include specific recommendations regarding how often and in what manner tires should be replaced for a particular model of car.

How many miles should you get new tires?

"The tires are designed nowadays to do 50-60,000 miles. But when they get down to those wear bars, you don't have as much tread," Allen said. "And I recommend right when it gets down to those bars, you replace your tires." Other factors that you should be on the lookout for are weather cracking and sidewall integrity.

What does traction a mean on a tire?

Traction: Tire traction is rated AA, A, B or C, with AA at the top of the scale. This rating is based on the tire's ability to stop a car on wet concrete and asphalt. It does not indicate the tire's cornering ability.

What is speed rating?

While a Z-speed rating still often appears in the tire size designation of these tires, such as 225/50ZR16 91W, the Z in the size signifies a maximum speed capability in excess of 149 mph, 240 km/h; the W in the service description indicates the tire's 168 mph, 270 km/h maximum speed.

What does M&S mean on a tire?

A sidewall mark of M+S (or M/S, M&S, MS) means that you have an all-season tire that has been approved for use in mud and snow by the Rubber Manufacturer's Association (RMA). These tires will provide traction in light snow, but we wouldn't want to be caught in a blizzard with a set of M+S tires.

What is a tire speed rating of H?

Is there a tire speed symbol or code?

Speed Rating	Miles/Hour	Km/Hour
Q	99 mph	160 km/h
R	106 mph	170 km/h
S	112 mph	180 km/h
T	118 mph	190 km/h

How is the proper tire inflation pressure determined?

The pounds per square inch (psi) pressure number branded on the tire's sidewall identifies the maximum cold inflation pressure that specific tire is rated to hold. The vehicle manufacturer's pressure recommendation can be found on the vehicle's tire information placard label, as well as in the vehicle owner's manual.

How do you measure tire tread depth?

Use a tread depth gauge, or if you don't happen to have one of those laying around, try the “penny test.” Insert a penny into the tire tread grooves with Lincoln's head facing down. If you can see the top of Lincoln's head, your tires are at 2/32nds of an inch or less of remaining tread. You need new tires immediately!

How often do you need to rotate your tires?

However, check your owner's manual to see if there is a recommended rotation scheme. During rotation, each tire and wheel is removed from your vehicle and moved to a different position to ensure that all tires wear evenly and last longer. Tires should be rotated every six months or 6,000 to 8,000 miles.

How long can you keep tires in storage?

When properly stored in a climate controlled warehouse, tires have an almost unlimited shelf life, and once they're on the road, proper care can add many years to a tire's life. "In general, we see six years of service with no more than 10 years of total life since manufacture."

What is traction grade?

No, “UTQG” is not a play dictated by Peyton Manning during a Super Bowl huddle. The Uniform Tire Quality Grade is a comparative assessment applied to most car tires (excluding winter tires) to help consumers make informed decisions. The manufacturers grade the tires themselves for temperature, traction, and tread wear.

How do I know if my Tyres are legal?

The 20p Test. A quick and easy way to see if your tyre tread exceed the minimum legal tread depth is to take the 20p test. Simply place a 20p coin into the main tread grooves of your tyre. If the outer band of the 20p coin is obscured when it is inserted, then your tread is above the legal limit.

How many ply is a LT tire?

LT-metric, LT-flotation and LT-numeric tires are branded with their load range (load range E or LRE) or their ply rating (10 ply rated) on their sidewalls and list their appropriate load range letter in their descriptions as LT245/75R-16 E, 7.50R-15 D or 31x10.50R-15 C. LT-sized tires featuring section widths of 305mm/

What does treadwear 440 mean?

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