Michelin sidewall cracking . Need advice

I've had too many tires on too many vehicles to know that Michelin are not the only ones with sidewall cracking. It can happen to any brand tire in the right circumstances. Tires are made of rubber and rubber degrades over time. The black is added to help prevent the tire from degrading sooner than if the rubber was left the natural off white color. As the tire changes from nice shiny black to dull grey, the ozone protection ingredients are evaporating. It is primarily caused by tires sitting too long and the various ozone prevention additives leeching out. Tires that are used on a regular basis will last longer and tires where the owner has used some of the various sprays, to make them shine, will develop cracks sooner. Tires left exposed to the sun or anywhere there are high concentrations of ozone will suffer the most.
tire cracks