Learn when premium fuel is actually required, what the different grades mean, and how to avoid paying too much.

We all want the best for our cars and trucks, but is premium gas worth the premium cash?

The higher the fuel’s octane rating, the less likely it is to prematurely ignite and cause engine knocking. phive2015/Adobe Stock We see the numbers every day at the local gas station, with gas sold ...

How high of an octane does your car actually need to run well? Here's what to know about the consequences of using the wrong ...

At gas stations around the world, premium 98-octane fuel often sits beside regular 91 or 95-octane options, usually at a ...