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AMSOIL Synthetic Heavy-Duty Grease (GHD)
Synthetic Heavy-Duty Grease, NLGI #2, GC/LB (GHD)

Extreme-pressure, moly-fortified. Provides outstanding protection for four
wheel drive steering knuckles, spring shackles, heavy equipment pivot
joints and other components operating in high-load, low-speed
conditions. Offers excellent water washout resistance.
Package sizes include:

14-oz. Cartridge
14-oz. Cartridges (case of 10)
14-oz. Cartridges (case of 40)
35-lb. Lug
120-lb. Keg
400-lb. Drum
PRODUCT DESCRIPTION
AMSOIL GH Series Heavy Duty EP grease is composed of synthetic base oils and lithium-complex
thickeners that provides the film strength, shear resistance, and mechanical stability critical to high
load protection. This combination excels in high and low operating temperature ranges by
providing excellent oxidation stability, high temperature dropping points and good low temperature
torque values and pumping capabilities. AMSOIL Heavy Duty EP Grease is compounded with
oxidation and corrosion inhibitors, effective oil soluble EP additives and molybdenum disulfide
(moly) solid EP additives for all around protection in severe conditions.

AMSOIL Heavy Duty EP Grease is formulated with a top performing lithium complex thickener
system that provides excellent water resistance as identified by the ASTM D-1264 water washout
test. AMSOIL Heavy Duty EP Grease adheres to metal and is shear stable during severe
mechanical activity, maintaining consistency and providing superior lubrication protection.

PERFORMANCE FEATURES
  • Moly Fortified for added EP protection
  • Adhesive and Shear Stable - prevents squeeze out
  • High dropping point (exceeds 500ºF)
  • Excellent water-washout resistance
  • Oxidation and corrosion inhibited

APPLICATION RECOMMENDATION
AMSOIL GH Greases in grades #1 and #2 are recommended for use in manual or automatic
lubricating systems. NLGI #1 (GHB) greases have better mobility and are the preferred choice for
colder applications, for automatic lubrication systems with long pumping runs, and for gear box
applications (where recommended by manufacturer). NLGI #2 (GHD) is the preferred choice for
medium to high ambient temperatures, sleeve type bushings, high shock loading environments,
high water environments, and is the primary choice for wheel bearings.

The correct consistency grade of AMSOIL Heavy Duty EP Grease is recommended for use in
heavy and light duty applications found in manufacturing plants, automotive applications,
agricultural equipment and construction equipment. These include, but are not limited to, roller
bearings, plain bearings, gears, bushings, wheel bearings, chassis lubrication, universal joints, ball
joints, tie-rod ends, steering knuckles, and heavily loaded pivot pins on mining and off road
equipment such as power shovels, draglines, wheel and back hoe loaders, excavators and
bulldozers. AMSOIL Heavy Duty EP Greases are suitable for use up to 325º F. When operating at
elevated temperatures, frequent regreasing may be required.

AMSOIL Heavy Duty EP Greases are compatible with many other types of grease. However, it is
recommended that when changing greases, the equipment be cleaned of the old grease when
possible or flushed with a liberal amount of AMSOIL Heavy Duty EP Grease while the mechanism is
in operation. Closely monitor the system for any inconsistencies. Any grease compatibility
questions should be referred to your AMSOIL representative or AMSOIL INC.

APPLICATION MAINTENANCE
Maintaining a clean work environment is important when equipment greasing is performed. Wipe
grease fittings clean prior to injecting grease to prevent contaminant ingestion. Maintain bearing
housings one-third to one-half full of grease. Do not over-grease as excessive heat buildup can
result. Supplement standard grease maintenance by periodically cleaning and packing housings
with fresh grease on an established maintenance schedule.
Typical Technical Properties
 
GHD
NLGI
GC/LB
Thickener
Lithium Complex
NR*
Fortified with Moly Compound
yes
NR
NLGI Consistency Grade
2
NR *
NLGI Performance Grade
GC-LB
NR*
Penetration (ASTM D-217) 25° C [77° F], 0.1 mm Worked 60
strokes
265-295
220-340 min
Dropping point, °F[°C] - ASTM D2265
550 [288]
428 [220] min
High temperature life, hours - ASTM D 3527
118
80 min
Oxidation stability, psi - ASTM D 942 (100 hr/300 hr)
0/3 max
NR
Water washout, percent - ASTM D 1264
1.6
15 max
Rust and corrosion - ASTM D 1743
pass
pass
Oil separation, percent loss - ASTM D 1742 (24 hours, 25°C
[77°F]
2.1
6.0 max
Leakage, g lost - ASTM D 4290
<1.0
10 max
Four ball wear test, mm scar - ASTM D 2266
0.40
0.60 max
Fretting wear, mg - ASTM D 4170
3.4
10 max
Four ball EP, kgf - ASTM D 2596

Weld point

Load wear index


400

68


200 min

30 min
Timken OK load test, lbs - ASTM D 2509
70
NR
Low temperature torque, N*m - ASTM D 4693 (-40°C [-40°F])
5.3
15.5 max
LT-37 pumpability, g/min (60°F/0°F [16°C/-18°C])
350/9
NR
Copper corrosion - ASTM D 4048
1B
NR
Disc brake wheel bearing specifications

Ford ESA-M1C 198A

Chrysler MS-3701

yes

yes

NR

NR
Oil viscosity:

40°C [104°F], cSt

100°C [212°F], cSt

130

16.5

NR

NR
Flash point, °F[°C] - ASTM 92
450 [232]
NR
Color
purple/black
NR
Texture
smooth
NR
NA: Not applicable
   
NR: Not required for NLGI GC-LB labeling
   
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