Get to cause of problem My 2004 Toyota Sienna all-wheel-drive minivan needs run-flat tires. After two years, the original tires began making a thumping sound. A tire dealer said they were "cupping" and replaced them with another tire maker's run-flats, which are beginning to make the same sound two years later. Who makes a good top-line, reliable run-flat tire?

Vehicles keep burning oil I have been following your responses to readers with oil consumption concerns. I have the exact same problem with my 2005 Caravan, except mine started burning a quart of oil per 1,000 miles at 15,000 miles.