2 Yrs ago I put new Michelin tires on my car. The day I got them and picked the car up at the dealers , the tires sidewall's looked brown or faded. Not new & black. But they were supposed to be new tires. I thought they would shine up after some tire dressing. They still look the same ( old)- what could that be from ?? sally
Some manufacturer*s are using less in their tires of a product call "Tire Black". This could be the reason it didn*t look new from the start. It is more prevalent in some manufacturers than others....Since your tires have never been able to shine-up after time. My suggestion for you is: On every tire this is a BIRTH DATE. This is called the DOT (Dept of Transportation) number, every tire has one. Drive into a reputable tire dealer and ask them to tell you what the birth date of your tires are...Have them show you how to find it. This will tell you if these tires were new two years ago or had been sitting in inventory for years...?
Michelin is a quality manufacturer,however~ IF the birth date is more than 6 years ago, it is recommended the tire be replaced.
This website will help show you where to look.
〉 Answered on Feb 8th, 2010 by Pat Fleischmann , Director of First Impressions at Community Tire Pros & Auto Repair