AMSOIL 100% SYNTHETIC WATER-RESISTANT GREASE

AMSOIL Synthetic Water-Resistant Grease delivers extreme-pressure protection and exceptional water resistance for wheel bearings, chassis points, and any application where moisture exposure is a constant threat. Built on calcium sulfonate complex thickeners and synthetic base oils, this is the grease you reach for when standard formulations wash out and leave components unprotected.

Bearings and chassis components on boat trailers, ATVs, UTVs, snowmobiles, and marine equipment face a unique combination of stresses. They operate under heavy loads while being repeatedly submerged, sprayed, or exposed to standing water, mud, snow, and ice. Conventional greases break down and wash away under these conditions, leaving metal surfaces vulnerable to corrosion and accelerated wear. A grease that can't stay in place is a grease that isn't working.

RESISTS WATER WASHOUT WHERE OTHER GREASES FAIL
Most greases lose integrity quickly when hit with water, whether from submersion at a boat ramp, pressure washing, or riding through creek crossings. AMSOIL Synthetic Water-Resistant Grease posts a water washout rate of just 0.8% in ASTM D1264 testing. That number reflects formulation built around durable cohesive and adhesive chemistry that holds together when wet and clings to metal surfaces under prolonged exposure to standing or pressurized water. For boat trailer wheel bearings that see repeated submersion, ATV suspension components caked in mud, or snowmobile chassis points packed with wet snow, this grease stays where you put it.

FIGHTS CORROSION ON CONTACT
Water intrusion into bearing housings and chassis fittings accelerates rust and pitting on precision metal surfaces. AMSOIL Synthetic Water-Resistant Grease passes ASTM D1743 rust and corrosion testing, meaning it actively seals and chemically protects metal surfaces even during extended moisture exposure. This matters for equipment that sits between uses, like a boat trailer parked for weeks between launches or a snowmobile stored through shoulder seasons. The grease forms a protective barrier that doesn't break down just because conditions are wet.

HANDLES HEAVY AND SHOCK LOADS
Wet-duty applications don't get a pass on mechanical stress. Trailer wheel bearings carry full tongue weight and road impacts. ATV and UTV suspension joints absorb constant shock loads on rough terrain. AMSOIL Synthetic Water-Resistant Grease delivers a Four-Ball EP weld point of 620 kgf (ASTM D2596) and a Timken OK Load of 65 lbs (ASTM D2509), providing genuine extreme-pressure performance that prevents metal-to-metal contact under sustained and sudden heavy loads. The Four-Ball Wear scar measures just 0.42 mm (ASTM D2266), confirming low wear rates even under boundary lubrication conditions.

PERFORMS ACROSS A WIDE TEMPERATURE RANGE
From subzero snowmobile runs to sun-baked trailer hubs on summer highways, this grease maintains usable consistency. The operating range spans -40°F to 350°F, with a dropping point above 600°F (ASTM D2265). Low-temperature torque at -40°F measures 8.7 N·m (ASTM D4693), so the grease remains pumpable and functional in deep cold without hardening up and starving bearings. Oil separation registers at 0% in ASTM D6184 testing, meaning the base oil stays locked in the thickener matrix rather than bleeding out during storage or high-temperature operation.

NLGI CERTIFIED FOR WHEEL BEARINGS AND CHASSIS
AMSOIL Synthetic Water-Resistant Grease carries the NLGI GC-LB performance classification along with the HPM+WR designation. GC certifies it for automotive wheel bearing service. LB certifies it for chassis lubrication. The WR tag specifically identifies enhanced water resistance performance. Use it anywhere an NLGI #2 GC or LB grease is recommended, particularly when equipment regularly encounters water, humidity, or high-moisture environments. It is compatible with many other grease types, though best practice is to clean old grease from housings or flush liberally with fresh Water-Resistant Grease when switching products.

APPLICATION NOTES
Keep grease fittings clean before injecting to prevent pushing contaminants into bearing housings. Fill bearing housings one-third to one-half full. Overpacking generates excess heat that degrades grease life. Supplement regular greasing intervals with periodic teardown, cleaning, and repacking with fresh grease on a set maintenance schedule.