What are high hours for an engine?
The rule of thumb here is that every 50 hours of marine use is approximately equal to 3000
miles of automobile travel. Today’s cars get 120-150,00 miles out of their no-lead gasoline
motors, so 2000-2500 hours is about max for gasoline marine motors and outboards. Diesels
are somewhat more rugged, run at lower RPM and 6000-8000 hours is the high end before
rebuild.
The rule of thumb here is that every 50 hours of marine use is approximately equal to 3000
miles of automobile travel. Today’s cars get 120-150,00 miles out of their no-lead gasoline
motors, so 2000-2500 hours is about max for gasoline marine motors and outboards. Diesels
are somewhat more rugged, run at lower RPM and 6000-8000 hours is the high end before
rebuild.
From the Surveyor's Notebook
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