Hi Jim,

don't do that, I stored for 3 months, when we were to use I saw the biggest family of fungus that I saw in my life! he spotted the deep one of the gallon.
I store per 20 days, not more, I talk with Carlos ( RTI ), he said the same.
I use many filters too, the kerosene is very hygroscopic.
I hope help you.

Jose[8D]