What is Avgas and How Does it Differ from Regular Gasoline?

Avgas, short for aviation gasoline, is a type of fuel used to power aircraft engines. It is a specialized gasoline that is designed specifically for use in aircraft, and it has certain properties that make it different from the gasoline used in cars and other vehicles.

Avgas is typically formulated to have a higher octane rating than regular gasoline, which helps to prevent engine knocking or pinging, which can damage the engine over time. Avgas also has a lower freezing point than regular gasoline, which makes it more suitable for use in cold weather conditions. Additionally, avgas may contain additives that help to prevent corrosion and wear on aircraft engines and fuel systems.

There are different types of avgas available, each with its own specific formulation and properties. The most common types of avgas are:

* Avgas 100LL: This is the most commonly used type of avgas, and it has a 100 octane rating. It is suitable for use in most piston-powered aircraft engines.
* Avgas 100/130: This type of avgas has a 100 octane rating and is suitable for use in some high-performance aircraft engines.
* Avgas 130LL: This type of avgas has a 130 octane rating and is suitable for use in high-performance aircraft engines that require a higher octane fuel.

It's important to note that not all aircraft engines can use avgas, some engines are designed to run on jet fuel or diesel fuel, so it's important to check the aircraft's manual to determine the correct type of fuel to use.