Best Marine Grease For Outboards: 10 Options Compared

#1 · Best Overall

1. Yamaha Yamalube 14 oz

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

Best for: Saltwater corrosion protection.

Why it ranks #1: Its marine formula states saltwater corrosion resistance, adhesion to friction surfaces, and high- and low-temperature stability in a 14.1-ounce tube cartridge.

Yamalube's stated resistance to saltwater corrosion makes it a relevant choice for outboard owners maintaining equipment in marine environments. The genuine Yamaha factory-original grease also adheres to frictional surfaces and resists breakdown at high and low temperatures, features that support lubrication across changing operating conditions.

Yamaha says the grease adheres to frictional surfaces and is not affected by engine or boat vibration, helping it stay at contact points during operation. Its stated resistance to saltwater corrosion addresses a key exposure for marine hardware, while stability at high and low temperatures supports use across changing conditions. The listed 14.1-ounce tube provides a defined supply, and compatibility with a variety of greases can ease maintenance where lubricant types are mixed.

Skip it if you need grease explicitly specified by a service manual; Yamaha Yamalube 10 oz Marine Grease says to use it where grease A is specified.

This genuine Yamaha grease suits boat owners seeking saltwater corrosion resistance and adhesion at frictional surfaces. Its 14.1-ounce tube is a practical consideration for supply planning, but follow the equipment service manual when it names a particular grease specification.

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

#2 · Best Waterproof Pick

2. BRP Triple-Guard Grease

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

Best for: Saltwater outboard maintenance.

Why it ranks #2: This genuine BRP grease is stated to be totally waterproof, resist saltwater and cold, and avoid swelling seals, packing, or O-rings.

Waterproof protection against wash-off is the defining feature of BRP Triple-Guard Marine Grease, helping keep lubrication in place around wet marine equipment. Its listing also says the grease stays put through vibration and cold temperatures, making those conditions central considerations for buyers maintaining an outboard or related hardware.

BRP describes this grease as unaffected by salt water, vibration, and cold temperatures, which supports use in exposed marine environments where those conditions meet the equipment. Its stated compatibility with other greases can simplify maintenance when a previous lubricant remains in the system. The listing also says it will not swell seals, packing, or O-rings, an important detail for servicing assemblies that use those components. It comes in an 8-ounce tube.

Skip it if you need a larger listed tube for maintenance; Yamaha Yamalube Marine Grease comes in a 14.1-ounce tube and states saltwater corrosion resistance.

Choose this BRP grease for marine maintenance where wash-off, salt water, vibration, or seal compatibility matter. Its 8-ounce tube suits buyers who need the listed formula in that quantity; those planning larger-volume work may prefer a larger stated package.

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

#3 · Best Broad Application

3. Quicksilver 2-4-C

Best for: Cable and steering service.

Why it ranks #3: Its listed uses include prop-shaft splines, gimbal bearings, and steering linkages, with water resistance and high-load protection.

Quicksilver 2-4-C names an unusually broad range of marine maintenance points, including steering systems, cable linkages, prop-shaft splines, and gimbal bearings. That breadth helps buyers evaluating one grease for several listed boat mechanisms, while its stated water resistance addresses exposure to washout during marine use.

The listed applications include throttle and shift cables, steering linkages, drive and prop-shaft splines, gimbal bearings, swivel brackets, and U-joints, helping owners map the grease to specific maintenance jobs. Quicksilver also states high-temperature and high-load suitability, relevant to demanding applications, and superior water resistance against washout. The product is an 8-ounce tube, so buyers should account for that quantity when servicing multiple components or planning ongoing maintenance.

Skip it if you prefer a larger tub for broad equipment maintenance; Sta-Lube SL3121 is listed in a 14-ounce tub and resists severe water exposure.

Quicksilver 2-4-C suits boat owners servicing the listed steering, cable, spline, and bearing points, particularly under high-load conditions. Consider its 8-ounce tube size when planning a multi-point job, and match applications to the equipment's maintenance requirements.

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

#4 · Manual-Specified Pick

4. Yamaha Yamalube 10 oz

• Weight: 0.27 g
• Container Type: Tube
• Form: Paste

Best for: Yamaha manual-spec maintenance.

Why it ranks #4: The two-pack is identified for locations where grease A is specified in the service manual, making manual compatibility its key advantage.

Yamaha explicitly says this Yamalube grease should be used where grease “A” is specified in a service manual, giving outboard owners a concrete compatibility cue for scheduled maintenance. The listing identifies a 10-ounce size and a two-pack, which can help buyers plan supply around that manual-defined requirement.

The service-manual instruction is the key buying filter: this is the listed choice for points that specify grease “A,” rather than a universal substitute based on the product name alone. Its genuine Yamaha Yamalube identification supports buyers seeking the factory-original product, and the stated 10-ounce, two-pack format provides two listed units for maintenance supply planning. Check the manual's specification against the grease designation before applying it to an outboard component.

Skip it if you need stated saltwater or washout performance rather than a manual-defined grease; BRP Triple-Guard Marine Grease specifies waterproof protection.

This Yamaha product best fits owners following a service manual that calls for grease “A” and seeking the genuine Yamalube item. Its specific instruction is also its boundary: do not assume it matches other grease designations.

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

#5

5. Liqui Moly Marine Grease

• Weight: 9 oz

Best for: Saltwater-exposed vessel hardware.

Why it ranks #5: Its marine-use description states resistance to saltwater and wet environments, plus long-lasting lubrication and sealing properties.

Liqui Moly states that its marine calcium grease is impervious to salt water, making saltwater exposure its clearest differentiator for vessel maintenance. The heavy-duty formula also claims long-lasting lubrication and sealing properties in wet environments, features relevant to buyers caring for lubrication points exposed to water.

The description says the grease reduces friction and wear and has long-lasting lubrication properties, supporting its role in routine vessel maintenance. Its resistance to hot and cold water, water-repellent behavior, and saltwater impermeability address wet marine conditions, while excellent aging and shear stability speak to staying effective under mechanical stress. The listing identifies a 250-gram product; buyers should match its application to their equipment's lubrication requirements.

Skip it if you need a larger stated tub for broad multi-point servicing; AGS Marine Grease is listed in a 16-ounce tub.

Liqui Moly suits vessel owners prioritizing saltwater impermeability, wet-environment sealing, and durable lubrication. Its 250-gram quantity is a planning consideration for extensive maintenance, and the equipment's own lubrication requirements should guide application.

Listed on Amazon as: Liqui Moly Marine Grease | 250 g | Marine Calcium Fat | Lubricating Fat | SKU: 20540

#6

6. Lucas Oil Marine Grease

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

Best for: Lucas Oil brand loyalists.

Why it ranks #6: It is explicitly identified as marine grease in a 14-ounce cartridge, but the supplied product details give few application or water-resistance specifics.

The Lucas Oil name is the clearest point of distinction for this marine grease, giving buyers already choosing Lucas lubricants a familiar brand for boat-maintenance supplies. The listing identifies it as Marine Grease in a 14-ounce cartridge, a size and container format to consider when planning storage and application.

The 14-ounce cartridge gives buyers a defined quantity and a cartridge format for their grease-handling setup. Lucas Oil identifies the product as Marine Grease, so it is presented for marine maintenance rather than as a named engine or gear oil. The supplied information does not specify water resistance, temperature range, compatibility, or particular outboard lubrication points; choose it when the listed identity and Lucas Oil brand meet your needs, not on unlisted performance claims.

Skip it if you need stated saltwater protection or named lubrication points; BRP Triple-Guard Marine Grease lists both water resistance and seal compatibility.

Lucas Oil loyalists seeking a listed marine grease in a 14-ounce cartridge may find this a straightforward fit. Buyers who need documented saltwater resistance, temperature performance, or outboard-specific application guidance should choose a product whose supplied details state those points.

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

#7

7. Sta-Lube SL3121

• Container Type: container
• Form: Paste

Best for: Water-exposed trailer equipment.

Why it ranks #7: This 14-ounce marine grease is formulated for water washout resistance and lists marine equipment and boat trailers among its applications.

Sta-Lube's polymer formulation is described as adhesive and resistant to water washout, making this grease relevant to boat trailers and marine equipment exposed to severe water conditions. Its tacky aluminum-complex formulation and 14-ounce tub distinguish it for buyers who want the listed larger container format.

The adhesive, non-blend characteristics are intended to help the grease stay where applied instead of blending away, while its stated water-washout resistance addresses wet service conditions. Sta-Lube lists boat trailers and marine equipment among its applications, so buyers can connect the formula to those maintenance tasks. The 14-ounce tub supplies a larger listed quantity for multiple lubrication points; its aluminum-complex base oil formulation is also explicitly identified.

Skip it if you need a cartridge for a grease gun; AGS Marine Grease lists a cartridge format and applications including trailer bearings and rollers.

Sta-Lube suits owners servicing boat trailers or marine equipment where water washout resistance and an adhesive grease matter. Its listed tub format is a consideration for application workflow, particularly if your maintenance setup calls for a cartridge.

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

#8

8. AGS Marine Grease

• Weight: 14 oz
• Container Type: Cartridge Tube
• Form: Grease

Best for: Multi-equipment wet environments.

Why it ranks #8: Its stated mineral-base formula resists water washout and corrosion, with listed applications including propeller shafts and steering linkages.

AGS combines a mineral-base formula with stated resistance to water washout, humidity, and full submersion, giving buyers a multipurpose option for equipment exposed to wet conditions. Its listed applications span marine, automotive, farm, home, and industrial use, useful for owners maintaining more than boat hardware.

AGS identifies an NLGI #2 grease with mineral base oils, a lithium-complex thickener, and extreme-pressure and anti-wear additives. Those named components accompany stated resistance to rust, corrosion, oxidation, wear, and pressure, supporting its listed use on metal parts. The application list includes wheel bearings, U-joints, drive shafts, steering linkages, trailer bearings, and propeller shafts, so buyers can map it to varied marine and non-marine maintenance points.

Skip it if you need an unambiguous package quantity and format; Quicksilver 2-4-C is listed as an 8-ounce tube.

AGS suits owners maintaining metal bearings, shafts, linkages, and other listed equipment across marine and non-marine settings. Its water-resistance claims fit wet service, but the conflicting package details make quantity and container format less clear.

Listed on Amazon as: AGS Marine Grease, Premium Mineral Base, Water-Resistant, for Marine, Automotive and Industrial Use, 16 oz Tub

#9

9. BTAS 2-4-C Grease

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

Best for: Fresh and saltwater upkeep.

Why it ranks #9: The NLGI 2 lithium formula is described as water-washout resistant for fresh and salt water, but its listed details are less outboard-specific.

BTAS pairs a lithium-based NLGI 2 formula with stated resistance to water washout, giving marine owners a grease specified for splash, immersion, and repeated launches. Its listing also describes a low-friction barrier on metal surfaces, connecting the formula to lubrication of movable boat components.

The stated lithium base and NLGI 2 consistency identify the grease's formulation, while the claimed water-washout resistance addresses fresh- and saltwater exposure during launching and recovery. BTAS says it forms a low-friction barrier on metal surfaces, supporting its listed use on movable marine components. Its application guidance calls for covering friction points and filling bearing, shaft, and joint gaps, making thorough application part of the maintenance workflow.

Skip it if you need a larger listed quantity for widespread servicing; AGS Marine Grease is presented in a 16-ounce tub.

BTAS suits boat owners maintaining metal friction points, bearings, shafts, and movable joints exposed to repeated water contact. Its 8-ounce tube is a quantity boundary for larger jobs, and the listed application directions call for an even protective coating.

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

#10

10. CRC Marine White Lithium

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

Best for: Boat mechanism lubrication.

Why it ranks #10: This marine white lithium grease lists steering parts, cables, and gear-shift mechanisms, but provides fewer outboard-specific details than higher-ranked options.

CRC Marine White Lithium Grease is listed for gear-shift mechanisms, steering parts, hinges, latches, cams, pistons, and cables, giving boat owners specific maintenance points to evaluate. The description also says it will not wash off, melt, or freeze, a useful stated boundary for varied weather and temperatures.

The application list connects this grease to moving boat mechanisms, from steering parts and cables to hinges and latches, helping buyers assess whether their maintenance task is covered. CRC states that it provides long grease life and will not wash off, melt, or freeze, supporting use across varied weather conditions. The listing identifies a 10-ounce container, while its broad application description does not specify an outboard service-manual grease designation.

Skip it if you need grease expressly matched to a service-manual designation; Yamaha Yamalube 10 oz Marine Grease specifies locations calling for grease “A.”

CRC fits boat owners lubricating the listed steering, cable, shift, and hinge mechanisms across changing weather conditions. For outboard service points governed by a manual-specific grease designation, use a product whose supplied instructions match that requirement.

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