capran
Senior Member
- Joined
- Apr 11, 2022
- Messages
- 218
- Vessel Name
- Honu
- Vessel Make
- Helmsman 38/Mariner Saville 37
Usually I post questions under the Helmsman thread. Have a 38 Helmsman with a Lugger 85 HP engine. top of engine says Northern Lights, and my impression is they often use same engine for generator, but mine it is the main and only engine. was re-reading manual and it says change oil every 250 hours. (500 for electronically controlled engines, which it is not). I use the boat just during the summer and put it on the hard almost 10 months a year. I have always changed the oil at the end of the cruising season, so it's very clean/fresh for storage, but I do put on only 110 hours or so per summer. Am I doing unnecessary annual change of the oil? It's only about 3 1/2 gallows of DELO 400 SDE CK-4 15W-40 if that matters.