CarMD Shares Tips to Help Car Owners Improve Fuel Economy; Alerts Drivers to Top "Check Engine" Failures That Reduce MPG

IRVINE, Calif., March 16, 2012 /PRNewswire/ -- CarMD.com Corporation, a leading provider of automotive information and products, today announced top maintenance tips and "check engine" problems that have the biggest impact on fuel economy. As analysts warn that gas prices are...