Since 2010 I am a VERY happy owner of 275 SSi which is used for our holidays in France.
Every year before the season the local French boat service makes all necessary to have a problem free vacation.
I have 8,1 l Volvo Penta with 142 hours with no problem until now, we use it for coast « crosieres » to the Lerins Islands with average 2500-3500 RPM on the sea , aprrox 30 % of time the engine is running in restricted area with limited speed ( around 1000 RPM) howerver.
The boat is in the port all the year with mainly fresh water ( Cannes Marina), we use it for boating 3 month time in the summer.
Recently I was told that the exhaust of my Volvo Penta should be replaced to avoid any future problem.
Is it really necessary? It seems that it would cost some few thousands euro here.