Under normal circumstances, most modern engine oil and gasoline brands work fine on their own to keep your engine running smoothly. But there may be cases where even the best of them could use a ...

To many people, gas is gas — as long as it’s conveniently located, it’s good enough for them. But is there more to know about what’s coming out of the pump? Is there a difference between brands?

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.

Is Premium or Mid-Grade Fuel Worth the Extra Money? Premium gas does have the same amount of ethanol as other grades, but it doesn’t provide any more power or contain better additives than regular gas ...