FC-W stands for 4 Stroke Cycle, Water Cooled Gasoline Engine Lubricant. It is NMMA specification for 4 stroke outboard engines. NMMA developed testing criteria for marine 4 stroke oils. These criteria include bench tests for viscosity, corrosion, filter plugging, foaming and aeration etc., as well as engine tests.

In the consumer automotive industry, Lucas' premium oils, greases and problem-solving additives have helped to firmly establish Lucas as a prominent figure in the marketplace.

Lucas Oil Products, Inc. is an American manufacturer and distributor of automotive oil, additives, and lubricants. It was founded by trucker Forrest Lucas and his wife Charlotte in 1989.

Lucas Petroleum Motor Oils are formulated with the highest quality paraffinic base stocks and an exclusive high performance additive system, including lubricity and anti-seize agents. They come in many SAE grades and meet or exceed current API specifications.

Although oil in a four-stroke marine engine performs the same function as it does in an automobile engine, passenger car motor oil should not be used in marine engines. The two primary reasons for this: water and wear. Consider that corrosion caused by water is a primary concern for marine engines.

Marine oil contains specific additives that help to provide adequate lubricity at these lower temperatures and resist the effects of fuel contamination, which can occur during long periods at idle when unburned fuel condenses on cylinder walls.

Lucas Oil Products' corporate headquarters will move to an existing location in Indianapolis and the company's primary production facility will remain in Corydon, Indiana. Indiana is Lucas' home state.

Extends oil life at least 50% longer. Perfect for use in new equipment that requires synthetic oil or any equipment that needs enhanced performance. Protects new and used heavy duty and high-performance transmissions, gear boxes, and engines.

Badly worn engines can benefit from a product ratio of 60 to 100% to delay or eliminate complete overhaul. Lucas High Mileage Oil Stabilizer helps to control blow-by, dry starts and oil burning - maximizing efficiency, reducing harmful emissions and extending oil life.

Marine oil contains specific additives that help to provide adequate lubricity at these lower temperatures and resist the effects of fuel contamination, which can occur during long periods at idle when unburned fuel condenses on cylinder walls.

Long story short, marine engine oils have a much harder job than automotive engine oils and should not be used interchangeably. They are made differently and are meant to work in harsher conditions with more tasks to perform (like protecting against rust, corrosion, etc).

Although oil in a four-stroke marine engine performs the same function as it does in an automobile engine, passenger car motor oil should not be used in marine engines. The two primary reasons for this: water and wear. Consider that corrosion caused by water is a primary concern for marine engines.

Unlike 2-stroke engine oils, 4-stroke ones do not burn with the fuel. Instead, they go around the engine. While circulating, the oil lubricates the moving engine parts, disperses heat, and eliminates impurities. Therefore, it contains different ingredients than two-stroke oils.

According to Lucas, the oil stabilizer will not only prolong the life of an engine, but it will also provide you with approximately 50% more time between oil changes.

Extends oil life at least 50% longer. Perfect for use in new equipment that requires synthetic oil or any equipment that needs enhanced performance.

It raises oil pressure, reduces smoking, leaking, knocking and blow by in worn engines. It also helps to control noise, overheating, leaks and wear in gearboxes. Since Lucas Heavy Duty Oil Stabilizer is 100% petroleum, it can safely blend with all other automotive lubricants, even synthetic oils.