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

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 ...

You have a choice when you pull up to the pump. Most gas stations have three choices for fuel for your vehicle, based mostly on octane ratings. Which one is the best for your vehicle? A lot of that ...

The Hemi engine has been a staple of Chrysler's lineup since the 1950s, with the latest iteration featuring multiple flavors: the 5.7L, 6.4L, and supercharged 6.2L displacements. These engines are ...

The past few years have seen General Motors (GM) introduce a fresh range of gas-fueled powertrains that deliver plenty of power and reasonable fuel economy. The 2.7-liter turbocharged L3B inline-four ...

The demon of engine knock is something an owner of a traditional high-performance Pontiac knows all too well. An engine designed when 102-octane high test was at almost every fuel station in the ...