In cleaning tanks
, after sumping up dirtier and dirtier fuel
(separated from water
, filtered 3x or more, and back to transparency) I ended up with black mould (no surprise!) and one gallon of fuel
which, after some 10X filtering, is still 85% close to full black opaqueness, though transparent when observed in minimal quantity, and "clean".
What does make it that dark !?
I'll throw it away, but need to understand...
Yap, I also cleaned hoses and curves.