If you want to ensure that a set of quality Michelin tires give you more than the mileage estimated by the manufacturer, you will need to take good care of them through routine maintenance and inspection. You don't have to be an expert on tire tread or cars in general to be able to properly care for a tire, because a tire is made of some fantastic compounds that are meant to keep your vehicle rolling for thousands of miles.
Before you can expect to get a whole lot of extra miles from a tire, you want to make sure that it is the ideal type of tire for your vehicle and the kind of driving that you do. This means picking out a type of tire that is appropriate for both your climate and driving, whether it is a high performance set, a set that is specifically built to withstand cold temperatures, or a general all-purpose set. You also need to ensure you are obtaining the right size, as specified by the manufacturer.
After you have your new wheels in place, the next big thing you have to do to ensure that they withstand the test of time is check the pressure inside frequently, because if they are allowed to become under or over inflated, you could have serious issues. Look for the manufacturer suggested PSI in the owner's manual and ensure that each tire is inflated accordingly, checking each month and before any lengthy road trips.
Keeping a tire out of the direct path of the sun's harmful UV rays will help decrease the risk of dry rot, so parking your car out of the sun is always a smart move. You must absolutely heed this particular piece of advice if you have a car that doesn't get driven much.
Another critical part of maintenance is routinely surveying for any existing issues, such as disintegrating tread value, nails, holes, or cracks in the wall of the tire. It is smart to take your car to be reviewed by a professional if you ever do see any sort of damage to the exterior of a tire. Of course, a tire isn't built to last until the end of time, so the moment to invest in a brand new set will always come around eventually.
When you are prepared to get a new set of Michelin tires, it is highly recommended that you replace all four tires at once. By only getting one new tire, you will be setting yourself up for some poor performance out of your vehicle.