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Old 08-21-2016, 12:38 PM   #22
what_barnacles
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City: kemah
Join Date: May 2015
Posts: 1,135
Quote:
Originally Posted by danderer View Post
Maybe somewhat apples-to-different-types-of-apples, but one aviation piston engine builder recommends:

".. at least one continuous hour at oil temperatures of 165°F to 200°F at intervals not to exceed 30 days". This allows any water that may have condensed in the oil to boil/evaporate.

Source: http://www.reiffpreheat.com/Lycoming%20SL180B.pdf
Just to add...

The goal is correct but almost impossible without to achieve in an unloaded diesel.

To get the boil off in a diesel you have to run it with the prop engaged, tie that stinger tight eh. For a diesel genny, just runs all the ac's.
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