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Old 20-12-2011, 13:39   #1
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Low hour oil changes

I really don't have any issues with changing my oil often, BUT, I have been in a marina for quite a while. I run the engine 10-15 min. every 1-2 weeks and am coming up on 1 year. I'm in the Caribbean and don't have any condensation to deal with.
I just do not like being wasteful.
It is a trend in new cars to measure stress on oil rather than making blanket recommendations.
Any thoughts, besides;
JUST DO IT!
Thanks all.
Ed
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Old 20-12-2011, 13:44   #2
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Re: Low hour oil changes

Are you talking about disel or gas motors, there really different than car motors.
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Old 20-12-2011, 13:50   #3
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Re: Low hour oil changes

The good news is you are running your engine once in a while which helps to prevent it from becoming seized up.. The bad news is you are running the engine with no load, meaning the carbon is building up in the combustion chamber. Water can get in the oil from condensation and other sources in all environments. I would change the oil once per year if you are under 300 hours and change the oil every 300 hours regardless. If you are running pure synthetic you can increase the time interval but not the yearly interval. Engines are much more expensive than a gallon or two of oil and a new filter.
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Old 20-12-2011, 14:15   #4
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Re: Low hour oil changes

Yeah, I hear you on the load thingy, I run it in gear. I installed the new motor myself several years ago- Once is enough.
Kubota diesel, BTW.
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Old 20-12-2011, 14:27   #5
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Re: Low hour oil changes

I have the same problem with my DC generator which runs very few hours a year thanks to the solar panels.
I have never seen any objective evidence, but the overwhelming view, is to change the oil at least yearly, which is what I do. The subject has come up before and I do not remember anyone expressing a contrary view, which must be a first for a sailing forum
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Old 20-12-2011, 14:38   #6
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Re: Low hour oil changes

Is there a different approach to engine oil and saildrive oil? My Yanmar manual suggests changing the saildrive oil as often as the engine oil but there are different stresses involved. It was suggested to me by a local mechanic, who was servicing the engine, to only bother changing the saildrive oil when it was "cloudy"
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