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White wall, outlined white letter and raised white letter tires all share a common manufacturing technique of adding a layer of white rubber on a stylized sidewall, strategically covered by a thin layer of non-staining black rubber to create the desired letter, stripe or effect. The...
Four-wheel drive and all-wheel drive vehicles are equipped with differentials and/or viscous couplings that are designed to allow momentary differences in wheel speeds when the vehicle turns a corner or temporarily spins a tire. However, if the differentials or viscous couplings are forced to...
Advantages of Correct Tire InflationMaintaining correct tire inflation pressure helps optimize tire performance and fuel economy. Correct tire inflation pressure allows drivers to experience tire comfort, durability and performance designed to match the needs of their vehicles. Tire deflection...
A tire's most important job is to carry the load required of it, and the load range/ply rating branded on the tire's sidewall indicates how much load the tire is designed to carry (at a specific pressure). Whenever changing tire sizes or from one tire type to another, it's important to ensure...
While it is simple to place a Lincoln penny in the tread groove of a worn tire and use Abe's likeness as a guide, we don't think Honest Abe knows what's best for today's drivers. The Lincoln penny tread depth test has been touted for years to be a suitable method of determining when it's time...
Tire treadwear/mileage warranties have become a popular marketing tool used by most tire manufacturers (and some independent retailers) to help position some of their tires competitively in the marketplace and to help indicate their potential longevity to consumers. Today they range from 30,000...
Diagonal tread wear is intermittent angled wear across the face and all of the way around the circumference of rear tires. It is caused by incorrect rear wheel toe settings that direct the tires to follow a path slightly different than the vehicle. Uneven and unusual tire wear patterns...
How Slow Do You Have to Go?The origin of tire speed ratings can be traced to Europe where they were needed to match high-speed tire durability with the unlimited vehicle speeds permitted on roadways like the German Autobahn. And even though the highest speed limit in the United States is 85...
Using white rubber to add style to a tire's sidewall dates back into the early 1900s. In those days, the white rubber of wide, whitewall tires not only added style, but also acted as the sidewall's outer protective layer. While most current tires feature black sidewall styling, selected luxury...
Tire compounds are made up of a combination of natural and synthetic rubbers, as well as carbon black and other chemicals. This makes their rubber compounds susceptible to damage from direct contact with gasoline, oil and antifreeze, as well as solvents often found in family garages. Extra care...
Like the motorsports tires they have evolved from, all Extreme Performance Summer performance category tires feature constructions and compounds that have been tuned to maximize traction and performance within a range of warm-to-hot ambient temperatures. Therefore, unlike less highly tuned...
Everybody knows tires are black, round, and hold air, so it can come as a bit of a shock when brand new tires have a white, waxy film on the sidewalls and shoulder area. It doesn't wash off easily, and it "balls up" when you rub it with your finger. What is it? Why is it there? Sometimes it can...
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