I too take of the filler caps after every flight and let the steam
escape. But thigs are covered up enough to prevent anything from going in.

Gene Seibel wrote:

Rich wrote:

I belong to the 'church' that says you can't get condensation if the
engine stays warmer than the ambient temperature. Had a discussion with
John Deakin who believes this is correct, as well. I plug mine in after
flight and open up the oil filler tube (IO520) to allow any humid air to
escape the engine.


That does seem to make sense. Probably much better than being on a
thermostat that turns it off and on.
--
Gene Seibel
Tales of Flight - http://pad39a.com/gene/tales.html
Because I fly, I envy no one.