Long storage and oil change

[extremo]

I winterized our diesel for storage on land in June 2010 (including an oil change). The boat is going back in the water in a few weeks but the engine won't be used until next spring, say April 2012. The question is :

Should I change the oil again now or just leave it for the next 6 months?

Its a Mercedes-Benz OM 636, 1.8 litre, inline 4, 38HP.
Thanks

[tommays]

Changing the oil will not do anything IMHP the possable issues come form moist air that could come in contact with valve seats/valves/ piston rings and cylinder walls

[extremo]

Originally Posted by tommays

Changing the oil will not do anything IMHP the possible issues come form moist air that could come in contact with valve seats/valves/ piston rings and cylinder walls

So do you suggest I run the engine as soon as I can and then once a month or so while we live aboard docked over the winter?

[JimsCAL]

Running the engine every so often if you can is always a good idea. When in winter storage and winterized, I still like to engage the decompression levers and roll the engine over by hand a few turns about once every month or so.