There are different gasoline grades based on octane. Here's how to tell which grade of fuel your car needs and why.

Today, the biggest difference between gasoline brands is the type of fuel-system cleaning additives used. However, the EPA mandates a minimum level of fuel-system cleaning additives, and all gasoline ...

NEW YORK (Reuters) - U.S. consumers wasted billions of dollars last year filling their cars with costly premium-grade gasoline for no tangible benefit, according to a study by the country's leading ...

In a move to end an "octane war" among petroleum companies and cut unnecessary usage of high-octane gasoline in the kingdom, Thailand will impose new octane standards for all types of gasoline ...