Best Products to protect your mercury outboard

Grime, oil residue, salt buildup, rust, and corrosion. These are all good reasons to clean and protect your Mercury Outboard on a regular basis. Performing routine maintenance on your Mercury Marine engine will keep it running reliably for plenty of fun on the water with family and friends.

To help you avoid problems due to lack of maintenance, we’ve compiled a list of the best products to help recover lost engine power, keep your engine tuned for optimal performance, and increase the overall lifesepan of your Mercury Outboard.


Protecting Your Mercury Outboard

Mercury/Quicksilver Corrosion Guard Quicksilver_Corrosion_Guard.jpg

Cover it with Corrosion Guard. This rust inhibitor forms a water resistant barrier on both painted and unpainted surfaces. We recommend using it at every service interval with a liberal application to all metal engine surfaces. You can also use it on outdrives, lower units, and power trim motors.

The marine environment is one of the harshest on the planet. This is why protecting your boat from corrosion is extremely important. For premium defense against rust, we highly recommend this product.

Click to shop Corrosion Guard

2-4-C Marine Grease With PTFE

All of our Mercury technicians swear by this product. It’s a high quality, exceptionally versatile, lithium-based grease that won’t break down when mixed with water. This product works to resist oxidation and degradation. With extreme pressure additives, the lubricant is able to withstand friction in a variety of operations and temperatures.

You can use this product on steering systems, cable linkages, remote controls, prop shafts, swivel pins, tilt lock mechanisms, hinge pins, and even your boat trailer wheel bearings. This multi-purpose product does it all.

 Click to shop 2-4-C Marine Grease with PTFE – 8 oz

2-4-C Grease Cartridges with Grease Gun – OR – 2-4-C Grease Gun Cartridges – 3 oz.

Mercury_Quickleen.jpgQuickleen Engine And Fuel System Cleaner

This deep cleaning treatment should be used at regular intervals throughout the boating season. It thoroughly removes carbon deposits from carburetors, injectors, intake valves, spark plugs, piston-crowns, and cylinder heads. Use of the product prevents engine knocking, piston seize up, and also extends spark plug life.  

Quickleen Cleaner can be used in all 2 and 4 cycle carbureted and fuel-injected gasoline engines. We recommend using it in conjunction with Quickare (below) to prevent fuel breakdown and oxidation. One ounce of this product treats 5 gallons of fuel. NOTE: if you have not used the Quickleen product, use of it can result in larger than normal amounts of carbon deposits breaking free in a short time period causing spark plugs to foul requiring their replacement.

Click to shop Quickleen Engine & Fuel System Cleaner

Quickare Fuel Treatment

In order to maximize your engine’s performance, use this complete fuel treatment at every fill-up with any grade of gasoline. Quickare is an excellent defense against the problems associated with ethanol blended fuels, including its corrosive effects on metals as well as the gum and varnish that result from fuel oxidation. Mercury Quickare 92-8M0047930.jpgSee PartsVu’s Knowledge Center for our article on the problems of ethanol gasoline.

This product can also be used to clean up existing deposits in untreated fuel lines, tanks, carburetors, injectors, intake valves, and spark plugs. It will keep your fuel fresh for up to three months, and can be used in all 2 and 4 cycle carbureted and fuel-injected gasoline engines. Use one ounce to treat every 10 gallons of fuel.

Click to shop Quickare Fuel Treatment

Quickstor Fuel Stabilizer

This product stabilizes fuel for up to a year, while preventing fuel system corrosion and keeping injectors and carburetors lubricated. A good habit to get into is adding this product to your fuel before storing your boat in the off season. It will also prevent regular and ethanol blended fuel from breaking down and oxidizing.

Quickstor Fuel Stabilizer can be used in all 2 and 4 cycle carbureted and fuel-injected gasoline engines to keep your engine running at its peak. Regular use should help your engine start easier, idle smoother, and get out of the hole quicker. One ounce of product treats 5 gallons of all octane grades of gasoline, as well as ethanol blended fuel.  

Click to shop Quickstor Fuel Stabilizer


Power Tune Internal Engine CleanerMercury_Power_Tune.jpeg

Carbon, gum and varnish deposits unfortunately accumulate on the combustion chambers of gasoline engines due to low temperature operation, the use of lower grade fuels, and even just normal engine use. These deposits cause loss of power, and removing them helps to improve fuel and air flow as well as overall engine performance.

That’s why we recommend this internal engine cleaner for your Mercury outboard. It’s a laboratory and field-tested blend of chemicals designed to remove power robbing deposits. The product can be used in all 2 and 4 cycle carbureted and fuel-injected gasoline engines.

Click to shop Mercury Power Tune Internal Engine Cleaner

Mercury Marine Engine Oils

Here at PartsVu, we’re strong advocates of always using Genuine Mercury petroleum products for several reasons. Firstly, they outperform automotive oils by far because of their specialized additive package designed specifically for marine engines. They also provide up to 33% better camshaft and wear protection.  

The benefits of using Mercury Marine engine oils include increased engine reliability and performance; they have industry-leading strength and viscosity retention, and ultimate corrosion protection. Over 5 years of engineering and development by the largest marine engine manufacturer in the world have gone into these specifically formulated engine oils. For your convenience, PartsVu carries a wide selection of Genuine Mercury Marine lubes, oils and additives.

Shop All Mercury Marine Oil Change Kits & Save Up To 20% OFF MSRP

Shop Optimax, DFI & Premium Plus TCW 3 2-Stroke Oil – Save Up To 23% OFF MSRP


Mercury High Performance Gear LubePVMGLK01.jpg

This lubricant provides maximum protection against excessive wear, even in the presence of water. Pressure additives improve oil film adhesion and advanced emulsifiers protect gears in case water enters the gear housing. Prevent corrosion and pitting to extend gear life with Mercury Gearcase Lubricant.

Click to shop Mercury High Performance Gear Lube Kits

Shop Mercury High Performance Gear Lube Multipacks & Save!

Keep your Mercury outboard running reliably longer by taking the necessary steps to protection. Remember, every time you take it out for a spin, your boat is subjected to wear and tear caused by the harsh marine environment. But thankfully, the use of these products on your Mercury Marine outboard take very little time and effort, and will surely pay off in many extra years of enjoying time on the water.



For lifestyle, how-to, gear & technology and inspiration, check out Mercury Marine’s blog – Dockline.