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

The search for alternative fuel sources has been accelerating in response to environmental concerns and dwindling petroleum reserves. Human ingenuity has led to the exploration of some of the most ...

When filling up a MINI Cooper at your local gas station, you have the option to use either premium or regular gasoline. Although both types of fuel are acceptable, premium gas is recommended for MINI ...