G.R. Patterson III wrote:

Aren't they also heavier, i.e., pound of engine weight per HP generated?

Every one of which I've read is heavier than an equivalent gas engine, especially
with all the accessories installed. Since some of the new diesel designs are
2-stroke, and most gas engines are 4-stroke, though, some of the newer ones may
actually come in lighter than the equivalent gasoline engine (if they ever make it to
production).

Help me out here.

Why "especially with all the accessories installed"?

Why is a 2-stroke cycle engine lighter than a 4-stroke?

Thanks.

Dave