Is it permissible to use avgas in a turbine engine?

Using avgas in a turbine engine can sometimes be permissible, but it is subject to specific restrictions set by the engine manufacturer. Turbine engines are designed to operate on jet fuel, which has different properties from aviation gasoline (avgas). While there may be certain instances or specific engine models where avgas can be used, these exceptions are strictly governed by manufacturer guidelines to ensure safe and efficient operation.

It is essential to consult the engine’s Operating Manual or Supplement, as using the wrong type of fuel can lead to performance issues or potentially damage the engine. Furthermore, manufacturers often conduct extensive testing to determine which fuels can be safely used, hence the importance of their recommendations for any allowable use of avgas in turbine engines. Understanding these restrictions ensures compliance with safety standards and maintains the integrity of the engine and aircraft operation.