2015 Cummins QSB 5.9 480 HP

Not at all, but that only is a band-aid for a calcium/ lime/zinc contiminated saltwater side on the cooling system– Does not come close or address what really matters–aftercooler servicing per my protocol.Plus it does not address organic fowling such as grass or impeller pieces which can be big-time.

Tony

I take care of at least 10 of the QSB 5.9 480’s———They are rock solid when set up right and I continue to recommend them as a great engine.. But like any engine in the power to displacement / weight range, setting it up right is the key along with proper maintenance of the seawater side of the engine… Being a fresh water boat is “way good”, but once in salt water, you need to be extra diligent as to aftercooler servicing….

Tony.