I purchased a set of Sumitomo Tires from Daytona Toyota. The day I bought them, I drove 35 milies home, right to the supermarket. Came out, and the new tire was flat. Took it in, and nothing was wrong, they said. Went to Orlando right after the dealer, and woke up the next morning, flat again! Called AAA, they put a donut on, and I ruined a day at my time share, getting a place to put on the tire. Air valve again. Third time, at hairdresser, flat again! Called AAA, Daytona Toyotoa repaced the valves. Several months later flat again... read full review »