On Sep 25, 7:15*pm, Tim wrote:
My brother called me aboiut it,a nd I honestly don't know. I winterize
my boats (both GM engines) and really never gave it much thought,
seeing they only get stored about 5 mo. out of the year. and with
exception of drainging water and flushing wwith the "pink stuff'
pulling the battery and making sure the carb and fuel have a generous
amount of stabilizers, I've never fogged my engines, but he's thinking
of long storage.

Is there special oil? or simply give it a healthy shot of penetrating
oil?

I don't know.

Thanks!

I don't recall reading of tests on various fogging sprays.

Seasonal storage using most available fogging sprays (killing the
engine by spraying it into the carb) will be fine.

If the boat/engine is going to be stored long term (longer than a fall/
winter season) as you suggest I would use any commonly available
fogging spray followed by several drops of engine oil into the
cylinders (removing spark plugs) and manually pumping the engine a
couple of times to lubricate the cylinders with that oil.