I pull the plugs and squirt
oil in each cylinder then spin on the starter to coat valves and cylinders with fresh
oil. I then pull all the rockers to take pressure off valve springs and keep all valves on their seats to prevent any corrosion. reinstall plugs and put
antifreeze in cooling system to protect the aluminum. Also remove wheels and store on jack stands as well as all the other normal stuff like fresh
oil and filter and draining the fuel system. I have a disconnect switch on the battery so that seems to be enough to protect from discharge.