A Guide to the Different Types of Gas at a Gas Station

Gas stations typically offer different types of fuel to meet the varying needs of vehicles and customers. Here are some common types of gas available at gas stations:

1. Regular Unleaded Gasoline

Regular unleaded gasoline, often referred to as “regular gas,” is the most commonly used fuel for vehicles with gasoline engines. It has an octane rating typically between 87 and 91 and is suitable for most standard vehicles.

2. Mid-Grade Unleaded Gasoline

Mid-grade unleaded gasoline, also known as “mid-grade gas,” has a slightly higher octane rating than regular gasoline. It is commonly available with an octane rating between 89 and 93. Mid-grade gas is used in vehicles that require a higher octane level than regular gas, such as some high-performance or luxury vehicles.

3. Premium Unleaded Gasoline

Premium unleaded gasoline, often referred to as “premium gas,” has a higher octane rating than regular and mid-grade gas. It typically has an octane rating of 91 or higher. Premium gas is used in vehicles that require a higher-octane fuel to operate efficiently, such as high-performance sports cars or some luxury vehicles.

4. Diesel Fuel

Diesel fuel is primarily used in diesel engines, which are commonly found in trucks, buses, and some cars. Diesel fuel has a higher energy density compared to gasoline and is less volatile. It is often marked with a green nozzle at gas stations to differentiate it from gasoline.

In addition to these primary fuel types, some gas stations may offer alternative fuel options such as ethanol blends, biodiesel, or compressed natural gas (CNG) for vehicles equipped to use these fuels. However, the availability of these alternative fuels can vary depending on the location and the gas station.

It’s important to note that fuel types and their octane ratings can vary by country and region. It’s advisable to refer to the labels and signage at the gas station or consult the vehicle owner’s manual to determine the appropriate fuel type for your specific vehicle.