A nifty idea that I was once told can also help here. It is a good idea to open the oil filler door/dipstick access and pull the dipstick up to hold the door open and leave that way for about 5 minutes after shutdown. Firstly it allows heat out of the cowl and introduces a natural flow through the door. Second it allows the warmth of the engine to vent any condensation or moist air in the sump to be evaporated off rather than condense and fall back into the sump.
Paul Smith Brisbane, AUSTRALIA pk.sm...@bigpond.net.au http://kr2spacemodulator.blogspot.com/