If it is water based,,, and you are worried about it staying at the bottom of your tank, if that is what it would do ( if the fuel pick up is not at the very bottom ) then you could probably add some alcohol to your tank... I think this is the way water is taken out of a gasoline tank without draining it... when it mixes it should then mix and burn right along with the diesel...or just drink some alcohol yourself and not worry about it.... two margaritas ought to be enough....Greg