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Pilot Sport A/S
The Michelin Pilot Sport A/S was developed to be the Ultra High Performance All-Season tire that provides all-weather traction while minimizing compromises in dry and wet road handling to complement the performance of sports cars, coupes and sedans that require year round traction even in light snow.
Will These Tires Fit My Vehicle?

While the technology of tires and tire manufacture has indeed progressed, the basic principle behind the pneumatic tire hasn't changed all that much over the years. A cushion of air inside the tire in combination with the materials and construction of the tire itself work together to not only let the car roll with minimum resistance but allow it to do so on a cushion of air. The compounds and materials in the tire tread and sidewall work with the suspension to keep the tire on the road surface and maintain vehicle control. It is the materials and construction of the tire itself that varies from tire to tire. Choosing the right tire starts with determining what type of driver you are, and type of driving you're going to do.
New Shoes

As anyone who has recently had to put a new set of tires on their vehicle can attest, new tires can be a pricey proposition. While saving money on tires is right up there with skimping on brake parts or buying day old Sushi, spending too much on the wrong tires makes no sense either. The solution is to fit your vehicle with tires that not only suit the vehicle, but also your driving style or conditions at hand. The easiest and often most prudent choice to make is to put the same size, type, and rating of tire that your vehicle came from the factory with. The engineers with the white lab coats and pocket protectors with your vehicle's brand name on them usually know what's best. While stock replacement may be the easiest route, some vehicles come with a model designation of tire only available for that vehicle, and only from the dealership. Not to worry. A replacement is as easy as rolling into a tire of the exactly the same size and rating.
New Math

While choosing the correct diameter of tire is an obvious choice, there is almost an algebra book's collection of number and letter designations on the sidewall of a modern tire. The biggest one is the most important and usually goes something like P235/70R15 87H. Reading from left to right the translation is this. The P stands for passenger. Easy. The 235 is the width of the tire in millimeters. The 70 is somewhat tricky. This number is the tire's aspect ratio, or percentage of the width that is the tire's height. A 70 series tire is 70 percent of the tire's width tall. The higher this number, the taller the tire, and vice versa. The R stands for Radial. Easy again. The 15 is the wheel diameter the tire will fit. The far right number is the load rating, and the final letter the speed rating. The higher each one of these the greater load and speed the tire is manufactured to handle. There is another and oft spoken of number called the treadwear rating. This number gives an idea on how long the tire will last, or how fast it will wear out—depending on how you look at it. Read on.
Grip Versus Wear

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DOT Code

The DOT Code is an alphanumeric character sequence molded into the sidewall of the tire for purposes of tire identification. The DOT Code is mandated by the US Department of Transportation. The DOT Code is useful in identifying tires in a product recall.

The DOT Code begins with the letters "DOT" followed by a two numbers or letters plant code that identifies where it was manufactured. The last four numbers represent the week and year the tire was built. A three-digit code was used for tires manufactured before the year 2000. For example, 178 means it was manufactured in the 17th week of 8th year of the decade. In this case it means 1988. For tires manufactured in the 1990s, the same code holds true, but there is a little triangle (Δ) after the DOT code. Thus, a tire manufactured in the 17th week of 1998 would have the code 178Δ. After 2000, the code was switched to a 4-digit code. Same rules apply, so for example, 3003 means the tire was manufactured in the 30th week of 2003.

Other numbers are marketing codes used at the manufacturer's discretion

Additional Tire INFOR

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