Date registered: Jun 2013
Vehicle: 2003 CLK320 (A208) in Triple Black
Location: Atlanta, GA
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Tire "chunking" is a known problem that occurs in many brands of tires and vehicles. Causes (and cures) are not agreed upon.
[Back when OEM Firestones were being replaced by Ford on their SUVs, I waited for several months until a set of five Michelins for my Expedition were available.] Neither brand caused me any problems, the Firestones lasting 38K miles and the first set of Michelins about 58K. The truck was sold at 108K with the second set of Michelins on it.
Never had a problem with a Michelin tire, but do make sure they are installed at and maintained by a competent tire dealer, properly balanced, vehicle properly aligned (4-wheel if needed), rotated and inspected regularly, and carry the correct pressure for conditions (which also means adjusting the pressure if needed).
Currently run Michelins on my wifes's Camry (2nd set), the Tundra that hauls our 8K pound trailer (OEM set/approx.14K pound GCVW), and the CLK (third set). None of these sets are Pilots, passenger vehicles are MXV4s.
Just my experience, which won't/can't be everyones.