Had a fuel leak from the engine fuel filter on my Yanmar 3GM (2003 H356) and about 2 gallons collected in the sump under the engine before the smell got to us. Pumped the diesel/antifreeze/gunk mixture into an empty yellow diesel jerry can. Here's my problem. How do I get rid of the stuff in the can and how can I clean the can. Local recycling centers (MD) accept engine oil and green antifreeze but I don't think they accept fuel. Assuming that I can legally empty the can, how can I clean the inside to that I can safely use it to carry extra fuel? Thanks in advance.