Smith's Chevron

A 2003 EPA study showed that about 80 percent of all scrap tires - estimated at about 290 million - were recycled. That compared to just 17 percent of the scrap tires in 1990.

Every so often take a moment to check the condition of your tires, looking for excessive wear on them. The tread should wear down evenly; if not, the location of excessive wear is an indicator of a specific problem.