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Fuel economy tips boost efficiency with OnStar updates
Automakers push tools to save fuel as prices rise. EPA says proper tire inflation can lift economy by 3 percent, while under inflations wastes millions of gallons daily. DOE notes emissions testing can boost mileage by about 4 percent. changes in oil and air filters also help. GM enhances OnStar Vehicle Diagnostics with tire PSI alerts and oil-life predictions. E85 station lookup becomes accessible via OnStar.
MENTIONED IN THIS ARTICLE
U.S. Environmental Protection Agency
U.S. Department of Energy
OnStar