From the cost of the engine hour perspective, flying it
is almost free over letting it sit. It makes TBO if flown
a lot; probably doesn't make it if it sits a lot.

Bill Hale

BT wrote:
The oil needs to be heated to the point to "boil" water contaminates out of
the oil.
Normal oil temps to 180F-200F is not the 212F of boiling water, but it is
enough to keep the oil out.

I think AOPA and other magazines have had articles covering this in the last
year or two.

Running it regularly keeps the oils up on the cam, letting it sit for months
is worse than not flying it at all.
I know of no "desicant on a lid" that would work. Be more of a risk to drop
that down the filler tube.

Most people change oil after 50hrs, if you are only flying 50-100hrs per
year, maybe do 3 oil changes a year instead of 2?

BT

"Larry" wrote in message
oups.com...
For the past year or so I've been doing more 30-45 minute flights
rather than cross country pursuits for several usual reasons. I have a
0200 Continental... fellow at the airport was telling me lately that
its better not to fly than such short flights due to water condensation
and premature wear rust etc.. I'm not sure if that is really true. I
live in a dry SW climate. If it is true is there a way to desicant out
the moisture after every flight with some kind of lid over the oil
filler port?? I fly maybe 50-100 hrs per year. I just did a "top end"
so would like to keep her in top running shape. I'd have to talk with
my wife about flying more than 100 hrs/yr. I don't think I want a
partner either at least for now. Appreciate your thoughts.

Larry