My engine is very light on fuel so I prefer to fill a 20 ltr drum at the servo rather than top up at a marina. I also
use FTC as an additive which I put in the drum prior to carting it to the boat. I use the recommended amount ( quite
miniscule ).
Last week I changed the CAV fuel filter cartridge and in the separator was a pool of dark brown liquid that looked
awfully like FTC. There wasn't a great amount (maybe an eggcup full ) it lay at the bottom of the separator so it was
heavier than diesel.
So does this mean that FTC does not fully mix with the diesel fuel or is it that the CAV filter can separate the two. When
I swirled the separator around before I emptied it there was no sign of it re-mixing. Or was it some other substance
entirely ??.