Diesel fuel is inherently more stable than gasoline, at least it used to
be. I've heard some stories about the new low sulfur diesel not being as
stable as the old stuff. That said, it seems the main thing with diesel, is
water in the fuel, but I think most current diesel vehicles have water
traps
yet another reason for me to stick to old vw mechanical diesels :)
if there was fuel left over i will just crank them and run them. if not i
could bring an electrical pump in a bucket of fuel to force some new
fuel/atf into the system, maybe sit for a day if the fuel system is crusty
and then