Millions of U.S. drivers are putting themselves at risk and wasting fuel by failing to properly check tire pressure, according to a new survey by the Rubber Manufacturers Association (RMA).  Only 15 percent of motorists revealed that they know how to correctly check tire pressure. Under inflated tires contribute to more than 600 highway fatalities and 33,000 thousand injuries each year, according to the National Highway Traffic Safety Administration (NHTSA). Additionally, under inflated tires cause U.S. drivers to waste 1.2 billion gallons of fuel annually. To view Multimedia News Release, go to