I noticed 3 out of 4 of my dehydrator plugs had turned from purple to pink, so I pulled them and refilled with fresh silica. Before re-installing, I added ½ pint of engine storage oil to each cylinder. Tried squirting it in with a small oil can, but after about 15 minutes of pumping, it became clear that this could take most of the day. So, I used a funnel and poured the oil in each cylinder thru the top spark plug hole.