During extended periods of inactivity, engines are highly susceptible to internal rust and corrosion due to moisture and temperature fluctuations. Quicksilver Storage Seal is specially formulated to “coat” your engine with oil protection before winter or any long downtime. When sprayed into a running engine, it produces a dense oily fog that permeates all cylinders and clings to metal surfaces. The result is a long-lasting barrier against corrosion, so that when it’s time to start up again, the engine’s internals are nearly as well-preserved as when you left them.
- Simple Procedure: With the engine idling, gradually spray Storage Seal into the air intake (through the air filter or carburetor). The oily fog will start to choke the engine – continue spraying until the engine stalls, indicating the internals are thoroughly coated. (Alternatively, for some engines you can spray directly into each cylinder through the spark plug holes.)
- For All Engines: Whether you have an outboard motor, a jet ski (PWC) engine, a car, a motorcycle, or even seasonal yard equipment, Storage Seal will protect them all. One can (12 oz/360 ml) is sufficient to treat a typical V-engine or inline engine.
- Peace of Mind in Storage: Thanks to the spray’s heavy, sticky nature, the oil clings to cylinder walls and metal parts for months. You can be confident that during that time, no rust spots or corrosion will form on pistons, valves, or bearings.
- Easy Spring Start: An engine fogged with Storage Seal fires up more confidently after winter lay-up. Having oil on the cylinder walls means instant lubrication when you turn the key, reducing friction and preventing wear in those critical first minutes of operation after a long break.
- OEM Quality: As a genuine Mercury Marine product, Quicksilver Storage Seal is developed and tested to the same strict standards as your engine’s hardware. This ensures maximum effectiveness and compatibility – there’s no better choice to safeguard your Mercury, Mariner, or other brand engine during storage.



