Gale

I need help. My 2010 ES 350 eats tires. I am now on my fifth set of Michelin tires now in 64,000 miles. It is perfectly aliened. I rotate every 5000 and sometimes 3000 miles. The professionals cannot find anything wrong with the car and it has never been in an accident. I am now getting 6000 to 7000 miles on a set of tires. The tires are wearing perfectly right across the tread. We are at a loss.