K3WE wrote:
1. Thanks for the many replies.
2. Apologies for the slight paranoia ;-)...but year old gasoline does smell a bit funny and seem to have some crud settle out.
3. I do recall someone swearing off diesel pickups back in the 1970's saying they were horrible to start in wintertime cold without an additive.
4. I do know that water will work it's way into a tank...may not be much, but very easy to have a teaspoon or two in the bottom of a gas tank. Of course, I'd guess it zooms right through the fuel pump and injectors without too much disruption of the go-go juice.
I doubt you get cold enough in Missouri to need number 1 fuel in the winter but it wouldn't hurt you a bit to run a cold weather additive. Remember to put it in before it gets cold and you reach the cloud point of the fuel.
Biocide is up to you but if you use biodiesel I strongly recommend it.
Diesel isn't gasoline, it doesn't get old as fast as the crappy gas they sell these days.