WASHINGTON (AP) — President Barack Obama's commitment to take on climate change and put science over politics is about to be tested as his administration faces a politically sensitive question about ...

You might have noticed that some gas stations occasionally offer specials on unleaded 88 octane gas—also known as E15—which contains 15 percent ethanol. Ethanol is an alcohol that’s derived from corn.

Folks have been experimenting with ethanol in modern combustion engines even when they weren't so modern. Nicolaus Otto, the inventor of the traditional four-cycle engine, used it to power one of his ...

If you're a casual driver and don't pay much mind to the specifics of fuel composition, filling up at the gas station can be confusing, especially if it's a new car. Whether you're topping off a ...

The Biden administration announced it will suspend a federal rule that bars higher levels of ethanol in gasoline during the summertime. The move is intended to tamp down prices at the pump that have ...

Premium gas doesn't provide any more power or contain better additives than regular gas, and it contains the same amount of ethanol as other grades. It just resists detonation (knock) better than ...

87 octane gasoline, often called "regular" gas, is one of the most commonly used fuels in the United States. But what gives it that 87 rating is a word you've probably heard a time or two: Ethanol.

Most don’t look into things when it comes to fuel and just put in whatever’s recommended to them by mechanics or the car manual. However, you might find yourself in a position where you won’t be able ...

Ethanol is about as popular in most of America as Donald Sterling. That's particularly true among boaters, most of whom would rather pump sand in their tanks than any gasoline mixed with ethanol. When ...