Title: Describe the types of fuel used in aviation.
Course: Aircraft Pilot Training I (20053-I) > Section: Understanding Aircraft Systems: Fuel Systems

Description should include the following:

- The types of fuel that an aircraft may use and how to identify them as well as fuel practices.
- Aviation gasoline (AVGAS) is identified by an octane or performance number (grade), which designates the antiknock value or knock resistance of the fuel mixture in the engine cylinder.
- The higher the grade of gasoline, the more pressure the fuel can withstand without detonating.
- If the proper grade of fuel is not available, use the next higher grade as a substitute. Never use a grade lower than recommended.
- Care must be exercised to ensure that the correct aviation grade is being used for the specific type of engine.
- In addition to fuel color, the color-coding system extends to decals and various airport fuel-handling equipment.

PLT250, PLT251, PLT252, PLT253, PLT254, and PLT255

Process/Skill Questions:

- How can a pilot identify contaminants in fuel?