You should cite your source. It was true, long ago, when diesel
engines were large, heavy, slow turning, and low powered. The
idea that diesel engine can have an expected life expectancy of
many thousands hours is patently untrue today. The average life
expectancy of a marine diesel engine in a pleasurecraft is
somewhere around 1500 hours between major overhauls. Double that
if used frequently or in a non-continuous use commercial
application (like we would be doing). If this surprises you, it
may surprise you even more when I tell you that gas engines
average around 900 hours before overhauls. Diesel engines gained
the reputation for long service life early on in the history of
the engines, and mainly from engines that were used in
commercial operations. These were big, very slow turning
engines, usually in the 600 to 1,000 RPM range. Obviously, not
only is an engine running at that speed turning four times
slower than an engine at 2400 RPM, but the heat generated and
the strain is a great deal less. Then we