What is the result of mixing aviation gasoline with jet fuel in a turbine engine?

Mixing aviation gasoline with jet fuel in a turbine engine can lead to the formation of deposits on turbine blades and a loss of efficiency. This is primarily because the combustion characteristics and thermal properties of aviation gasoline (AvGas) differ significantly from those of jet fuel.

Jet fuel is designed to operate effectively in turbine engines, while aviation gasoline is not suitable for this application. When the two fuels are mixed, the combustion process can become unstable, resulting in incomplete combustion and the production of soot and other carbon deposits. These deposits can accumulate on turbine blades, leading to fouling, reduced efficiency, and potentially affecting engine performance and reliability.

Moreover, the differing boiling points and vaporization characteristics of the fuels can disrupt the fuel-air mixture, negatively impacting the engine's overall performance. Hence, the mixture can prove detrimental to turbine engine operations rather than being beneficial.