AMSOIL Synthetic Water Resistant Grease

Ideal for industry, marine, boat trailer wheel bearings, farm or recreation. Also the ultimate snowmobile & ATV chassis lube! Works great on dry land applications too.

This extreme pressure, water resistant grease is perfect for applications that are often immersed or sprayed with water, mud or snow. It is also an outstanding all-purpose grease for wheel bearing and chassis service on dry land! Suitable for automotive, recreational or industrial applications. This grease is an NLGI #2 (thickness). It carries the “GC” (chassis) and “LB” (wheel bearing service) designations.

AMSOIL Water Resistant Grease package sizes include:
-3-oz. Cartridges (pack of 3 or cases of 30. Not sold individually)
-14-oz. Cartridge (available in singles, cases of 10 or cases of 40)
-35-lb. Lug
-120-lb. Keg

Oil Depot has wholesale programs available so you can purchase AMSOIL Synthetic Water Resistant Grease at the best price in Canada or the United States. Request our price list using the contact form on your right.

Features and Benefits of AMSOIL Synthetic Water Resistant Grease

  • Delivers steadfast water washout resistance
  • Provides long lasting rust and corrosion protection
  • Extreme pressure formula for heavy loads and pressures
  • Offers synthetic friction reduction
  • Also outstanding as an all-purpose grease for dry land applications
  • Ideal for winter applications that are exposed to snow, ice and mud.

Stays in Place During Extended Water Immersion or Spray

AMSOIL Synthetic Water Resistant Grease was developed specifically to adhere to mechanisms that are often immersed in water or exposed to heavy spray. It offers extended life spans for bearings or parts that would experience frequent failure using regular grease.

Defends Against Rust and Corrosion

A constant concern regarding parts that are exposed to water or are located in a moist environment is failure due to rust and corrosion. AMSOIL Synthetic Water Resistant Grease is loaded with rust-fighting additives to preserve vulnerable equipment.

Protects Just Like Any Other Heavy-Duty Grease

Just because this grease has water resistant features, doesn’t mean that protection is compromised in heavy-duty situations. AMSOIL Synthetic Water Resistant Grease is a serious “extreme pressure” (EP) synthetic grease that can withstand heavy torque and shock-loads as you would expect from a good all-purpose EP grease. This exceptional versatility makes this AMSOIL grease a great choice if you only want to keep a single grease gun on hand to cover virtually everything whether it is exposed to water or not.

Suitable Applications for AMSOIL Synthetic Water Resistant Grease

This product is ideal for wheel bearings, bushings, bearings, suspension, steering, u-joints, chassis lube, electric motors, jacks, winches and so much more!

  • Boat trailer wheel bearings
  • Marine applications
  • Mud trucks/Off-road
  • Industrial and manufacturing equipment
  • Farm machinery
  • Auto
  • Snowmobile
  • ATV/Motorcycle/Dirt bike
  • Bicycle bearings

Also Available in Smaller 3 Ounce Tubes

AMSOIL Synthetic Water Resistant Grease is also available in the smaller 3 ounce tube format (as well as the standard 10 ounce size). The smaller tubes go with our handy AMSOIL Grease Gun which is convenient for home, tool box or on the road.

Can AMSOIL Synthetic Water Resistant Grease Be Mixed With Other Grease?

AMSOIL Synthetic Water Resistant Grease is compatible with a wide variety of synthetic, semi-synthetic and conventional grease types. For best results, flush out old grease when switching over to this product.


AMSOIL Synthetic Water Resistant Grease (GWR)



Thickenercalcium sulfonate complexNR*
NLGI Consistency Grade2NR*
NLGI Performance GradeGC-LBGC-LB
Extreme Pressure FortifiedYesNR*
Penetration (ASTM D-217) 25°C [77°F], 0.1 mm Worked 60 strokes277 220-340
Dropping Point (ASTM D-2265)  °F [°C]>500[>260]428[220]
Water Washout (ASTM D-1264) 80°C [175°F] % loss1.2515 max
Oil Separation (ASTM D-1742) 24 hr. @ 25°C [77°F], % loss06 max
Rust Protection (ASTM D-1743)pass1 max
Timken OK Load Test (ASTM D-2509), lbs.70NR*
Four Ball Wear Test (ASTM D-2266) Wear Scar Diameter, mm0.420.6 max
Extreme Pressure, Four Ball Method (ASTM D-2596)
Weld Point, kgf.
Load Wear Index, kgf.
 200 min
30 min
High Temperature Life (ASTM D-3527) Hours11580 min
Fretting Wear (ASTM D-4170)* Mg2.510 max
Leakage (ASTM D-4290), g*4.210 max.
Low Temperature Torque (ASTM D-4693) n*m, max @ -40°C [-40°F]6.815.5
*NR: Not Required for NLGI GC or LB labeling
A synthetic grease that is resistant to water, mud, ice and snow. Prevents rust and offers extreme pressure wear protection. Ideal for boat, auto, farm, snowmobile or recreation.
Manufacturer: AMSOIL
Model: Synthetic Water Resistant Grease
Product ID: GWR