AMSOIL GL Series multi-purpose, EP greases are
qualified against the highest grease standards*, NLGI GC (wheel
bearing) and LB (chassis), and are designed for multiple use applications.
These greases are composed of synthetic base oils and lithium
complex thickeners that provide the film strength, shear resistance
and mechanical stability required for good grease lubrication.
This combination excels in high and low operating temperature
ranges by providing excellent oxidation stability, high temperature
dropping points, good low temperature torque values and good low
temperature pumping capabilities. The GL Greases are compounded
with an effective oil soluble extreme-pressure additive for heavy
loads, plus oxidation and corrosion inhibitors that impart good
oxidation stability and rust protection.
AMSOIL’s top performing lithium complex thickener
system provides excellent adhesion properties and water resistance
as identified by ASTM D-1264 water washout test. This resistance
to water means a protective film of lubricant remains present
to protect equipment against wear while the corrosion inhibitors
prevent rust. AMSOIL GL Greases adhere to metal in all types of
environments and they resist squeeze out during operation. These
qualities ensure maximum lubricant protection during harsh operations.
AMSOIL GL multi-purpose greases are recommended
for many different applications. Its diversity simplifies lubricant
inventories and prevents greasing errors while providing problem-free
operation. AMSOIL GL Greases reduce repair and maintenance costs.
Product Applications or Requirements
GLB (#1) & GLC (#2) ASTM D-4950 (NLGI)
GLB (#1) Cincinnati Milicron P-72 Spec.
GLC (#2) Cincinnati Milicron P-64 Spec.
GLC (#2) Mack MG-C
High dropping point of 500°F+ (#1
Resists thermal and oxidation degradation
(lasts longer than conventional grease)
Excellent water-washout resistance
Good low temperature pumpability and torque
Adhesive and shear stable to prevent squeeze
* Applicable only to NLGI Consistency Grades
#1 and #2
AMSOIL GL Greases grades #0, #1 and #2, are recommended
for use in manual or automatic lubricating systems. NLGI #0 (GLA)
and #1 (GLB) 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 (GLC) is the preferred choice for medium
to high ambient temperatures, sleeve type bushings, high shock
loading environments, wet environments. and is the primary choice
for wheel bearings.
The correct consistency grade of AMSOIL GL multi-purpose
greases are 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, thrust bearings,
gears, electric motors, presses, winches, bushings, wheel bearings.
chassis lubrication, universal joints, ball joints, tie-rod ends,
and steering knuckles. AMSOIL GL greases are suitable for use
up to 350 F When operating at elevated temperatures, frequent
regreasing may be required.
AMSOIL GL Lithium Complex Greases are compatible
with many other types of greases. 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 the GL grease
while the mechanism is in operation. Closely monitor the system
for any inconsistencies. Grease compatibility questions should
be referred to your AMSOIL representative or AMSOIL Inc.
Maintaining a clean work environment is important
when equipment greasing is performed. Wipe grease fitting 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
Synthetic GL Series
Fortified with moly compound
NLGI consistency grade
NLGI performance grade
Penetration - ASTM D 217 (25°C
[77°F], 0.1 mm) worked 60 strokes
Dropping point, °F[°C] - ASTM
High temperature life, hours
- ASTM D 3527
Oxidation stability, psi - ASTM
D 942 (100 hr/300 hr)
Water washout, percent - ASTM
Rust and corrosion - ASTM D
Oil separation, percent loss
- ASTM D 1742 (24 hours, 25°C [77°F]
Leakage, g lost - ASTM D 4290
Four ball wear test, mm scar
- ASTM D 2266
Fretting wear, mg - ASTM D 4170
Four ball EP, kgf - ASTM D 2596
Load wear index
Timken OK load test, lbs - ASTM
Low temperature torque, N*m
- ASTM D 4693 (-40°C [-40°F])