Many drivers will opt for high octane fuel hoping to clean out their engine and improve performance. However, paying extra for high octane gasoline isn't really going to get you cleaner fuel. If what ...

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 ...

CONCORD, N.H. (AP) — A former Exxon Mobile engineer testified Monday that environmental hazards surrounding the gasoline additive MTBE were widely discussed in water quality and oil industry circles ...

Drivers reach for gas additives with the hope of squeezing more life, efficiency, or power out of an engine. The pitch sounds simple: pour in a small bottle, drive, and let chemistry work things out.

My question is about gasoline. The conventional wisdom I’ve always heard is that brand-name gas (Chevron, Shell, etc.) is better for your engine than what is sold at discount/mom-and-pop gas stations.

Among the many provisions of the energy bill nearing approval in Congress is a specific protection for producers of gasoline additives known as MTBE's. The compounds have been found to contaminate ...

Peel the lobbyist-encrusted layers off the "gasoline additive" debate, and you have one of the most complex, convoluted and economically destructive examples of pork-barrel politics ever concocted.