Mercury Storage Seal Fogging OilMercury Storage Seal forms a protective barrier that prevents rust on internal metal surfaces. It also keeps cylinders lubricated to prevent cylinder or piston damage when starting your engine after storage.Instructions: Start engine.; Securely insert a plastic tube in the spray head nozzle.; Slowly spray Storage Seal directly into air intakes so it goes into the engine.; After 15-20 seconds, spray heavily to stall engine.; Remove spark plugs and spray for 5 seconds into each spark plug hole.; Replace spark plugs.; Store engine.;