Re: Looking for my first boat
Gasoline fumes are the real danger. The fumes are heavier than air and can fill enclosed spaces like a boat. Boats with gasoline inboard engines have a blower to expel the fumes from the inside of the boat before starting the engine.
In addition, gasoline has a lower flash point than diesel fuel. You can light gasoline with a match, whereas you cannot light diesel fuel with a match.
Diesels engines do not require the complicated ignition systems that gasoline engines do, making them simpler and more reliable.