An obsolete Diesel engine (before turbo compressors and electronic injection) will work without any single electric and electronic component. You can start it with a crank and will run until you cut the fuel.
Diesel fuel is more stable and have a shelf live longer than gasoline.
Biodiesel is easy to make, and some engines work great only with vegetable oil
Best engines for biodiesel (vegetable oil) conversion
The 1994-1998 .5 Dodge Cummins 5.9l second generation 12 valve is considered to be the best truck for conversion to vegetable oil.
Also see 1989-1993 Dodge Cummins first generation
pre-Powerstroke Ford International models.
2006 5.9L Dodge Ram Cummins Diesel This engine will burn anything and everything.
