Best Marine Grease For Outboards: 10 Options Compared

#1 · Best Overall

1. Quicksilver 2-4-C Marine Grease

Best for: Multi-point marine component service.

Why it ranks #1: Its listed outboard-relevant uses include prop-shaft splines and steering and shift linkages, with water resistance and high-load protection also specified.

Quicksilver 2-4-C names a broad set of service locations, including steering systems, throttle and shift linkages, and prop-shaft splines, helping buyers match grease to specific jobs. Its listed water resistance and rust-and-corrosion protection address exposure, while the high-temperature, high-load formulation suits demanding applications.

The application list reaches from steering systems and control cables to drive- and prop-shaft splines, gimbal bearings, swivel brackets, and trailer wheel bearings. That breadth can help consolidate maintenance around several marine and trailer components. Quicksilver also states superior water resistance and protection against washout, supporting use where wet conditions threaten lubrication. Rust and corrosion protection adds another relevant maintenance benefit, while the high-temperature, high-load formulation is intended for demanding service. The product is an 8-ounce tube of NLGI 2 calcium sulfonate-based grease.

Skip it if you need an OEM Yamaha product for manual locations specifying grease “A”; Yamaha Yamalube ACC-GREAS-10-CT is identified for that use.

This suits boat owners servicing several listed systems, particularly cables, splines, bearings, or trailer wheel bearings under wet or high-load conditions. Its 8-ounce tube is worth considering when planning a broad maintenance session.

Listed on Amazon as: Quicksilver 2-4-C Marine Grease, 8 oz Tube

#2 · Best OEM Formula

2. BRP Triple-Guard Grease

• Weight: 0.27 g
• Material: Grease
• Container Type: Tube
• Form: Grease

Best for: Saltwater outboard maintenance.

Why it ranks #2: This genuine BRP grease is waterproof, resists salt water and vibration, and is specified not to swell seals, packing, or O-rings.

BRP Triple-Guard Grease stays in place despite vibration and is unaffected by salt water or cold temperatures, addressing several conditions encountered in marine service. Its waterproof formula helps prevent wash-off, while compatibility with seals, packing, and O-rings gives owners useful guidance for maintenance around those components.

The grease is described as waterproof and resistant to wash-off, which supports lubrication where water exposure is part of boat use. BRP also says vibration, salt water, and cold temperatures do not affect it, a combination relevant to exposed marine equipment. Its stated compatibility with other greases can simplify topping up an existing application, while the claim that it will not swell seals, packing, or O-rings helps inform work around those parts. It comes in an 8-ounce tube.

Skip it if you want a larger 14-ounce cartridge; Lucas Oil Marine Grease lists that quantity and cartridge format.

This suits outboard owners maintaining components exposed to salt water, vibration, or cold, especially when seals and O-rings are nearby. Its 8-ounce tube is the relevant quantity and format consideration for a larger maintenance session.

Listed on Amazon as: OEM BRP Johnson Evinrude Triple-Guard Marine Grease 8 oz Tube 0508298

#3 · Best Saltwater Resistance

3. Yamaha Yamalube 14 oz

• Weight: 0.27 g
• Material: Lithium
• Container Type: Tube
• Form: Grease

Best for: Yamaha OEM marine servicing.

Why it ranks #3: The Yamaha factory-original marine grease resists salt-water corrosion, adheres to friction surfaces, and has a stated 475-degree dropping point.

Yamaha Yamalube Marine Grease resists salt-water corrosion while adhering to frictional surfaces, helping protect working contact points in marine use. Yamaha also specifies stability at high and low temperatures and a 475-degree dropping point, giving owners concrete performance details when choosing grease for routine boat maintenance.

The stated adhesion to frictional surfaces and resistance to engine or boat vibration support lubrication that stays on the parts it is meant to protect. Yamaha also says the grease resists salt-water corrosion and remains stable at high and low temperatures, making those details relevant to changing marine conditions. Its 475-degree dropping point supplies a specific temperature reference, and compatibility with a variety of greases can help when servicing an existing lubrication point. This is a 14.1-ounce tube and a genuine Yamaha part.

Skip it if you need grease explicitly specified for steering systems, cables, or prop-shaft splines; Quicksilver 2-4-C lists those applications.

This is a strong fit for Yamaha owners who want OEM Yamalube with stated salt-water and temperature resistance. Check the relevant service guidance for the component; the listed details do not identify particular outboard grease points.

Listed on Amazon as: Yamaha New OEM YAMALUBE Marine Grease 14.1OZ Tube Cartridge ACC-GREAS-14-CT

#4 · Best Water-Resistant Tub

4. Sta-Lube SL3121 Marine Grease

• Material: Aluminum
• Container Type: container
• Form: Paste

Best for: Water-resistant trailer maintenance.

Why it ranks #4: Its aluminum-complex formula uses a polymer for adhesion and water-washout resistance, and the 14-ounce tub suits marine equipment applications.

Sta-Lube SL3121 uses a polymer to give its aluminum-complex grease adhesive, non-blending, and water-washout characteristics, a combination aimed at keeping lubrication present in wet service. The listing specifically names boat trailers and marine equipment among its applications, making it relevant to owners maintaining gear beyond the outboard itself.

The tacky formula and polymer-based adhesion are intended to help the grease stay on metal rather than blend away, while its stated water-washout resistance suits equipment exposed to severe water conditions. The application list includes boat trailers and marine equipment, so buyers can consider it for a broader maintenance routine around the boat. It comes in a 14-ounce tub, a container format to account for when planning application. The supplied details do not specify an outboard component or temperature range.

Skip it if you need a grease-gun cartridge; Liquid-O-Ring Multi-Purpose Marine Grease is listed in that container format.

This is a fit for owners maintaining boat trailers or marine equipment who value tacky, water-resistant grease. Its tub format and lack of named outboard service points are important considerations when planning application.

Listed on Amazon as: Sta-Lube SL3121 Water-Resistant Marine Grease – 14 oz. Tub , Blue

#5

5. BTAS 2-4-C Marine Grease

• Weight: 227 g
• Material: Lithium
• Container Type: Tube
• Form: Grease

Best for: Water-exposed bearing lubrication.

Why it ranks #5: The NLGI 2 lithium formula is described as water-washout resistant for fresh and salt water, and its listed uses include bearings and props.

BTAS combines a lithium-based NLGI 2 formula with water-washout resistance, aiming to keep metal components lubricated through splashing, immersion, and repeated launching. Its description specifically covers fresh and salt water, making the stated protection relevant to boats that move between shore and water during regular use.

The NLGI 2 lithium grease forms a low-friction barrier on metal surfaces, which the listing says helps reduce friction and extend the service life of marine movable components. Water-washout and water-permeation resistance are described for fresh- and salt-water exposure, including repeated launching and recovery. Application guidance calls for covering friction points and filling bearing, shaft, and movable-joint gaps, giving owners a practical approach to distribution. The 8-ounce tube is suited to targeted lubrication rather than an unspecified bulk supply.

Skip it if you require a stated temperature range; Maxima 80916 Waterproof Grease lists use from -20°F to 560°F.

This fits owners lubricating metal bearings, shafts, or moving joints that encounter splash, immersion, and repeated launches. It offers application guidance, but buyers needing a stated temperature range should weigh that specification boundary.

Listed on Amazon as: BTAS 2‐4‐C Marine Grease with PTFE for Boat, Bearing, Prop, Trailer 8oz

#6 · Best Tacky Cartridge

6. Liquid-O-Ring Marine Grease

• Weight: 14 oz
• Material: Bentone
• Container Type: Grease gun cartridge
• Form: Tacky Marine Grease

Best for: Tacky saltwater metal protection.

Why it ranks #6: Its 14-ounce grease-gun cartridge contains tacky marine grease described as salt-water resistant and able to hold up through cold-water submersion.

Liquid-O-Ring's tacky marine grease forms a durable protective film on metal, with stated resistance to corrosion and rust. Its description says it stays in place on a hot trailer and holds up through cold-water submersion, connecting the protective film to two practical conditions faced around boats.

The tacky film is described as shielding metal surfaces from friction, heat, and failure, which supports lubrication and protection at marine equipment contact points. Liquid-O-Ring also states that the grease stays in place on a hot trailer and withstands cold-water submersion, giving buyers specific environmental context. Its salt-water-resistant positioning is relevant to marine maintenance, and the 14-ounce grease-gun cartridge fits a cartridge-based application workflow. The listing identifies metal compatibility and marine use, but does not name particular outboard components.

Skip it if you need named steering, cable, or prop-shaft applications; Quicksilver 2-4-C lists those components explicitly.

This fits boat owners seeking tacky, salt-water-resistant grease in a 14-ounce cartridge for metal equipment. The listing supports general marine use, but buyers should rely on service guidance to identify appropriate outboard grease points.

Listed on Amazon as: Multi-Purpose Marine Grease – Salt Water Resistant (14oz)

#7

7. Lucas Oil Marine Grease

• Weight: 11.2 oz
• Material: Plastic
• Container Type: Cartridge
• Form: Powder

Best for: Lucas Oil cartridge users.

Why it ranks #7: This 14-ounce cartridge is explicitly identified as marine grease, though the supplied listing gives few specific outboard applications or performance details.

The 14-ounce cartridge is the clearest practical detail on Lucas Oil Marine Grease: it gives boat owners a cartridge-format option for grease-gun use. Lucas Oil identifies it as marine grease, but the supplied product information offers little detail about specific marine operating conditions or component applications.

Lucas Oil names this product Marine Grease and lists its container type as a cartridge, making the format the most concrete guide to how it may fit into a maintenance setup. The listed 14-ounce quantity gives buyers a defined amount to plan around. The supplied information does not identify particular outboard parts, salt-water resistance, temperature range, or other performance characteristics, so it is difficult to match the grease to a demanding or component-specific job from these facts alone.

Skip it if you need documented salt-water protection or a named outboard application; BRP Triple-Guard Grease lists both salt-water resistance and seal compatibility.

This is best for a Lucas Oil buyer who wants a 14-ounce marine-grease cartridge and can select grease based on their own service requirements. Consider another option when documented water protection, temperature behavior, or component guidance is essential.

Listed on Amazon as: Marine GREASE/30X1/14 OUN

#8

8. Yamaha Yamalube 10 oz

• Weight: 0.27 g
• Material: Silicon Carbide
• Container Type: Tube
• Form: Paste

Best for: Yamaha grease-A service jobs.

Why it ranks #8: This genuine Yamaha marine grease is specified for locations where a service manual calls for grease A, making manual compatibility central.

Yamaha identifies this 10-ounce Yamalube as the grease to use where a service manual specifies grease “A,” giving owners a direct reference for manual-led maintenance. The genuine OEM product comes as a two-pack, which supplies two tubes for planned servicing while keeping the manual’s grease designation central to selection.

The service-manual instruction is the key fit point: this product is identified for locations where grease “A” is specified, helping owners follow that particular maintenance direction. The two-pack contains 10-ounce tubes, providing a defined quantity across two containers for scheduled work. Yamaha describes it as genuine Yamalube and an original-equipment product rather than aftermarket, which can matter to buyers seeking the named OEM grease. The supplied information does not list additional performance characteristics such as water resistance or temperature range.

Skip it if you need stated salt-water corrosion protection and a temperature range; Yamaha Yamalube ACC-GREAS-14-CT lists both.

Choose this for Yamaha maintenance when the service manual calls for grease “A” and the two 10-ounce tubes suit the work plan. For jobs requiring documented marine performance details, the supplied listing is limited.

Listed on Amazon as: Yamaha New OEM Yamalube 10 oz Marine Grease, ACC-GREAS-10-CT

#9

9. CRC Marine White Lithium Grease

• Weight: 4 oz
• Material: Acrylic
• Container Type: container
• Form: Grease

Best for: Long-life marine mechanisms.

Why it ranks #9: The marine white lithium formula lists steering parts, cables, and gear-shift mechanisms, but provides fewer outboard-specific details than higher-ranked options.

CRC Marine White Lithium Grease is described as resisting wash-off, melting, and freezing, helping protect lubricated mechanisms through varied weather and temperatures. Its listed applications include gear-shift mechanisms, steering parts, hinges, latches, cams, pistons, and cables, giving boat owners concrete maintenance targets.

The long-grease-life description makes this a candidate for mechanisms where durable lubrication is useful, while the claim that it will not wash off supports use in wet marine settings. CRC also states that it will not melt or freeze, addressing temperature variation without specifying a numeric range. The application list spans steering parts, gear shifts, hinges, latches, cams, pistons, and cables, so buyers can assess fit by component. The product is supplied as a 10-ounce container; its listing does not specify a particular outboard model.

Skip it if you require a numeric operating range; Maxima 80916 Waterproof Grease specifies use from -20°F to 560°F.

This suits owners lubricating marine mechanisms such as steering parts, cables, hinges, or gear shifts who value stated resistance to wash-off and temperature changes. The listing does not establish an outboard-model fit or numeric range.

Listed on Amazon as: CRC Marine White Lithium Grease, 10 oz (284 gms)

#10

10. Maxima Waterproof Grease

• Weight: 1.2 lb
• Material: Lithium
• Container Type: Bottle
• Form: Grease

Best for: Wide-temperature waterproof use.

Why it ranks #10: Its NLGI 2 lithium-complex formula resists water washout and lists a wide temperature range, but its recommended use is automotive rather than marine.

Maxima 80916 lists a working range from -20°F to 560°F, providing a concrete temperature reference for buyers facing varied operating conditions. Its NLGI No. 2 lithium-complex grease also includes a high-density polymer and is described as resistant to water wash, supporting use where wet exposure matters.

The stated -20°F to 560°F range gives owners a defined temperature envelope to compare with the demands of their maintenance application. Maxima says the high-density polymer helps the grease perform under most ambient conditions, while the NLGI No. 2 lithium-complex formulation is described as not thinning under normal usage. Its water-wash resistance is relevant around wet equipment. The listing identifies it as multipurpose grease for metal and recommends following the vehicle owner's manual, so confirm the application guidance before using it on an outboard.

Skip it if you want named outboard applications such as prop-shaft splines and gimbal bearings; Quicksilver 2-4-C lists those service points.

This suits buyers who prioritize a stated temperature range and water resistance in multipurpose metal grease. For outboard service, use the owner's manual to determine whether this multipurpose product matches the specified application.

Listed on Amazon as: Maxima 80916 Waterproof Grease – 16 oz. Bottle , BLACK