Got to thinking
right after that last post so I went diggin on Mattituck's site.
Found this in an FAQ post there.
"Is My TMX engine preserved for shipping and storage?
Yes, the engine has been preserved and should be good for 6 months from date of preservation. If the engine is stored in a controlled enviroment..no dramatic temp changes day to day and humidity is controlled, then the preservation will last for a year. If you are not going to use it in that time- frame, the best bet and preferred method would be to run the engine and re-preserve it. If that method is unavailable we recommend you buy a couple of gallons of preservation type oil and an inexpensive pump up garden sprayer. Plug up any open holes that are exposed to the internals of the engine and install the preservation oil less a quart in the engine. Now remove the top spark plugs and get the garden sprayer. Install the last quart of preservation oil into the garden sprayer, set the sprayer nozzle on mist, pump it up and fog the cylinders through the spark plug holes. Turn the engine over a few times manually, using the crankshaft. Re-fog the cylinders and reinstall the top plugs. Don't turn the crankshaft again until you are ready to start the engine or are redoing the entire operation. Now get a few friends and lift the engine up and slowly rotate it counter clockwise around the crankshaft axis. In another words you would lift the engine and hold it as if it were installed in the aircraft, now rotate it as if the plane were in a 90* left bank, now slowly rotate it to inverted and then to a 90* rt. bank and the back to straight and level.....nothing like doing an aileron roll without an airplane! Doing this a couple of times will allow the preservation oil you installed to coat the internal parts of the engine. The engine weighs approximately 260 to 300 pounds, so the friends need to be able to lift and control the engine as you rotate it. You don't have to hold the engine the whole time, if you have some bubble wrap or even several old blankets to pile on the floor, just lift the engine, rotate it and gently set it down for a few seconds on the bubble wrap or blankets. They will spread the weight of the engine evenly across all surfaces they touch.
You should do this every 4 or 6 months with new preservation oil each time, if in an uncontrolled environment and once a year if in a controlled environment."