(The gasoline sold in Brazil contains about 25 percent alcohol, a practice that has accelerated Brazil's shift from imported oil.)

French gasoline already contains about 1 percent ethanol, mostly distilled from the country's plentiful sugar beets.

Since 1992, gasoline sold in New Jersey has contained an additive intended to reduce carbon monoxide in car emissions and improve air quality.

Why don't EPA fuel economy tests use ethanol-blended gasoline now that most gasoline contains ethanol?

In the 1970s, virtually all gasoline used in the United States contained lead with an average concentration of almost 2.4 grams per gallon.

This gasoline is of unreliable quality, often containing water or other contaminants that can damage or disable your vehicle.

All gasoline in Brazil contains ethanol, with blending levels varying from 20-25%.

Typical summer conventional gasoline contains about 1.7% more energy than typical winter conventional gasoline.

Since 2007 the Government of Ontario has required that all gasoline sold in the province contains at least 5% ethanol.

As a consequence, gasoline often contained several percent benzene before the 1950s, when tetraethyl lead replaced it as the most widely used antiknock additive.