When you step back to compare grades of gasoline, you will see why some fuels are cheaper than others and how certain grades affect your vehicle. Although all types of gasoline are sourced from oil, the specific treatment and chemicals added to the oil is what determines particular purpose and grade. Using the proper fuel grade in your automobile helps to ensure its efficiency and protects the motor from excessive friction and overheating. The following information will help you understand the differences between the available grades of fuel.

The history of graded gasoline dates back to the 1920s. Today, when a consumer pulls up to a typical gas pump, they have three grades of fuel from which to choose: regular, midgrade, and premium. Understanding the basics of these three gasoline grades is a necessity for anyone who sells fuel to the public.