Theoretically, the engine oils don't last much beyond half a year (the impurities and combustion residues make them acidic over time).
We use about 10-15 h/year. I don't change the filter every year, but I do change the oil. My Perkins uses 2.2 l (about 2.5 quarts), so not that much. I hope that the engine likes it and will reward me back with good performance for a long time. Marek 1994 C270 ”Legato” Ottawa, ON -----Original Message----- From: Nathan Post Sent: 15 October, 2020 15:44 To: Stus-List <[email protected]> Subject: Stus-List Re: Engine Hours Regarding sitting - after winterizing the engine will sit until spring. I doubt that is really such a big deal although yes these things don’t like to sit. The boat sat for 2 years before we bought it and the engine has run well without issues or leaky seals or anything since (had to replace a bad fuel pump and glow plug relay). So 5-6 months over the winter doesn’t seem like a big deal. I don’t generally put a lot of hours on the engine <50/year and this year I have only put about 25 hours on the Westerbeke 20B2 in Wisper. We are hauling out on Monday. I have been pondering if it really makes sense to change the oil and oil filter at that point (per the change it every fall on haul out philosophy). Or is that is a waste of resources and oil (more from an environmental perspective then $ costs) and I should just wait for it to reach 100 hours to change it. Any thoughts? - - Nathan Post S/V Wisper 1981 C&C 34 KCB Lynn MA USA October is the time to show your appreciation with a small contribution to this list to help offset the costs. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu October is the time to show your appreciation with a small contribution to this list to help offset the costs. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
