Hi,can anyone tell me if running my v70tdi on a 50/50 mix diesel and jet A1 aviation fuel would be harmful to the engine. any comments would be useful b4 i try it. thanks

 

Not a good idea.
Jet A is high in sulfur and low in lubricity. Diesel is also a lubricant in the high pressure fuel system keeping the pump and injectors working happily. The kerosene also has a lower cetane rating.
Ed

 

Kerosene has zero octane rating. And it is slow burning as is Diesel when compared to gasoline. JP4 is military low grade land based fuel with no positive vapor pressure. what that means the fuel vapors will not displace the air in the tank so it is very explosive.

In a Jet engine it is sprayed at about 500 psi through very tiny nozzles which atomize it so it mixes with the compressed and very hot inlet air for clean ignition. Walk behind a jet and you will get coated with unburned fuel fumes.