You can run normal diesel engines on kerosene (which is what jet fuel mostly is); the issue is that kerosene is less lubricating to the mechanical parts in the fuel-delivery system than pump diesel. This was a bigger issue back when mechanical injection was the rule. The solution is to pour a pint or two of automatic transmission fluid into the tank with every thirty gallon fill up.

Of course, the EGR, SCR & particulate filter were never designed for this setup, so when you convert a modern pickup to run on kerosene, those systems are blocked off, removed (w/ a sawzall for the dpf), a new exhaust is fitted and the ECU can be remapped with more appropriate settings.

This will also about double your mpg.