You have some fact and some fiction and are trying to mix it up. K-1 is not "illegal" to use in a commercial turbo prop aircraft. Neither is diesel fuel . Read up on P&W Service Bulletin 1244R21. Both aforementioned fuels are approved alternatives for JetA. It has some restrictions of which the most important is temperature. Since I don't know of many people jumping in -48 degrees Celsius ,it shouldn't be a factor. I don't know if you are trying to say that in order to use an approved fuel ,there must be a chain of custody. Not true. You can manufacture it in your back yard as long as it is made to the specifications outlined by P&W.You might have the fire marshall on you ass.It is true that Kerosenes and auto diesel is bit more corrosive than Jet A and therefore P&W requires you to do regular fuel nozzle inspections. The above mentioned fuel is approved for up to 1000 hours of continued use before an hot section inspection is required(Note 1 pg 17). If it passed ,youcan go on using it. You mentioned storage and that Jet A needs special storage. Not true. All Kerosenes can grow bacteria in them. Again the only stipulation to the storage of Jet is that it can not be mixed with any other approved fuels. If Diesel or Grade 80 dye was used prior to Jet a ,the sytem must be flushed. Regarding filters .No special filters required. As long as it is "free from water ,sediment and suspended matter and consists solely of hydrocarbon compounds " it shall be suitable for use in aircraft turbine engines. If I can achieve that by pouring it through Kleenex ,I'm in the clear. The only time that you are technically breaking the law is when you don't pay your taxes. All these fuels are taxed on different levels. Farm Diesel can be used in crop dusters tax free ,since it's a agricultural application. Jet a has an higher emissions tax than auto gas etc. Therefore. If you want to use K-1 ,just make sure you pay the appropriate taxes Hull insurance goes up.Hmmm Never heard of that since it is an approved fuel. But again ,insurance companies will use anything to raise the premium The biggest misconception is that the FAA regulates fuel. In a way it is true since they enforce the law that requires you to operate an aircraft within the limitation and specification set forth by the manufaturer. Well,P&W is the manufacturer and they said I can use it. I wish I can use K-1. It has a Higher BTU factor than JetA ,thus using less fuel for the same power. It has more lubricant (oil) in it and do not always burn that clean which makes for dirty airplanes ,but some summer and winter additives will do the same. Just my two cents
