Whether it is your boat or backup
generator, all diesel fuel tanks accumulate
sludge, water, and debris. What’s worse, is
that every time you refuel, you are only
dumping more particulate, water, and
organic debris into the accumulating
contaminants already at the bottom of
your tank.

Will the old fuel in your tank plug the
filters and shut down the engine? Will
you be able to find a mechanic for
repairs in an emergency?.

Diesel engines are designed to return
a significant portion of fuel not used
for combustion back to the tank. This
return fuel is very hot and under
extreme pressure. These two
conditions actually promote the fuel
 breakdown process.