[boatpoker]

Diesel produces roughly 10 percent (too many variables to be more precise) of that produced by gasoline although the effect on your blood is cumulative. Where an exhaust leak from a diesel may kill you in 9hrs. a similar leak from a gasoline engine could kill in 1hr.

Most of the questionable A4 installations I have seen were factory installs ie. Non-ignition protected domestic single pole breakers without polarity indicator in the engine/fuel compartment. Solid copper conductors, No AC/DC bond, AC outlets in the engine/fuel compartment.

I do agree that these issues have been compunded by owners who think that wiring a boat is just like wiring your rec room.