In TACS units in the AF we handled a lot of different fuels.  The tricky
stuff with the modified diesels (kerosene) (which JP4 is one) is that they
are much higher in volatility than regular diesel but not as much as
gasoline.  This leaves a toxicity problem that is often overlooked in safety
briefings.  Because gasoline is so volatile it often evaps off before you
are in really bad shape from it, but all those vapors will kill just as
easily.  With the jp4 it doesn�t evap quickly and because of the volatiles
in it will penetrate the body much more easily than regular diesel. As it
doesn�t vaporize as readily as gasoline it is less flamable but the vapors
are much denser making breathing the vapors actually more dangerous. Then
the very tricky part.  Most jp fuels have very toxic additives in them...

For example jp8 (replacing jp4) jp4 with a lot of very toxic additives.
(there is ethylene glycol in jp4, jp6, and jp8.

jp7 (used in the SR71) used a different additive base.  Made a great weed
killer and took a blow torch to ignite.

If any of you have the webasto type diesel heaters in your vans, if they
have the MF or Mil mark on their stamp label you can burn jp4/jp8 in them.

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jimt
Planned insanity is best.
Remember that sanity is optional.
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