Last week the EPA approved fuel with 15 percent ethanol content—marketed as E15 at pumps—to be sold between June 1 through the end of September, but many automakers warn against using fuel with more than 10 percent ethanol content in their vehicles.
The fuel has been linked to increased air pollution in urban areas, especially during hot summer months. When ethanol is mixed with gasoline at higher rates, the fuel evaporates quicker, which leads to smog.
Ethanol is approved by the EPA for use in all vehicles from the 2001 model year and newer, but not older cars. Automakers recommend verifying if cars are approved for E15 use by looking through owner’s manuals.
Read the article at Car Connection.