I have a question about this statement...
Do not add soap. Never use soap to disperse fuel and oil spills. It increases harm to the environment, and it is illegal.
"dawn" dish washing liquid is not harmful to animals , fish etc and is used to clean animals, stones dirt etc after a major oil spill?
While i have " pig pads" on my boat and a spill kit, and use a vac pump to change oil.. i still keep Dawn on the lower area just to keep it clean.