Many drivers will begin to see a cheaper E15 gas blend at gas stations nationwide. But what is E15, and what makes it different from regular E10 gas? The first difference you may already question is ...

And if ethanol really is more efficient, then why do you get worse fuel economy using E10 vs E0 (gasoline)? Whenever a fuel is listed as E10, E15, E85, E100 or E##, the number simply represents the ...

Ethanol is a beleaguered fuel these days, with national availability E85 nowhere in sight, rollout of E15 seemingly stalled, and concerns over its full carbon footprint hotly debated. Most drivers ...

A letter (May 10) questions the savings from E15 gasoline (gasoline blended with 15% ethanol) versus mainstream E10 gasoline, claiming that reductions in miles per gallon with E15 will exceed cost ...

WATERLOO | Motorists across the Cedar Valley are seeing the lowest gasoline prices of the year, as the price of unleaded with a 10 percent blend of ethanol -- E10 -- descends below the $3-a-gallon ...

Though the Environmental Protection Agency has already ruled on ethanol-blended gasoline mixtures for 2018, that hasn't stopped ethanol advocates from pushing for a higher 30-percent blend for ...

The Environmental Protection Agency has approved gasoline with 15 percent ethanol for use in cars year 2001 or newer, yet it prohibits its use in mowers and other power equipment, stating it may cause ...

FILE - New pumps at Rich Bohnen's service station at 60th and Penn Ave. S. in Minneapolis are seen in a Monday, Oct. 28, 2013 photo. (Jeff Wheeler/Star Tribune via AP, file) TOPEKA, Kan. (AP) — ...

Consumers across the U.S. still will be able to buy higher-ethanol blend E15 gasoline this summer, the Environmental Protection Agency announced Monday, saving them a little money at the pump but ...