Independent AMSOIL Dealer

Long Island

If you want to buy AMSOIL products, visit the AMSOIL Online Store.

AMSOIL Synthetic Multi-Purpose Grease

Synthetic GL Series Multi-Purpose EP Grease

Reduces friction and wear in high-speed/high-temperature components such as automotive wheel bearings and electric motors. It keeps components running clean and trouble-free for outstanding performance and long life. Product Codes: GLA, GLB, GLC

Synthetic Multi-Purpose Spray Grease

The same great AMSOIL Synthetic Multi-Purpose Grease in a convenient spray formulation. Ideal for greasing hard-to-reach equipment such as hinges, springs and many other common applications.

"Before using AMSOIL, two of our race cars were suffering wheel bearing seizure on a regular basis. This year, using AMSOIL Wheel Bearing Grease, our problems stopped totally."

H.C., Houston, Texas

Product Applications or Requirements

  • GLB (#1) & GLC (#2) ASTM D-4950 (NLGI) Service GC/LB
  • GLB (#1) Cincinnati Milicron P-72 Spec.
  • GLB (#2) Cincinnati Milicron P-64 Spec.
  • GLC (#2) Mack MG-C


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.


  • High dropping point of 500F+ (#1 and #2)
  • Resists thermal and oxidation degradation (lasts longer than conventional grease)
  • Excellent water-washout resistance
  • Good low temperature pumpability and torque values
  • Adhesive and shear stable to prevent squeeze out

* 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 fo 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-roc ends, and steering knuckles. AMSOIL GL greases are suitable for use up to 3500 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 ir 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-hall full of grease. Do not over-grease, as excessive heal 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 Grease GLA GLB GLC NLGI GC/LB
Thickener lithium complex lithium complex lithium complex NR*
Fortified with moly compound no no no NR*
NLGI Consistency Grade 0 1 2 NR*
NLGI Pertormance Grade NA GC-LB GC-LB NR*
Penetration ASIM D-217 (25C (77F), 0.1 mm)  Worked 60 strokes 355-385 310-340 265-295 220-340
Dropping Point, F ASTM D-2265 430 500 550 428
High Temperature Life ASTM D-3527 NA 107 hrs. 120 hrs. 80 hrs.
Oxidation Stability - ASTM D-942 5 psi, max 5 psi, max 1.8 psi NR*
Water Washout-ASTM D-1264 16.7% 9.5% 1.6% 15.0%
Rust & Corrosion- ASTM D-1743 pass pass pass pass
Oil Separation-ASTM D1742 24 hrs., 25C (77F), % loss 5.2 3.4 2.0 6.0
Bearing Leak Test ASTM D-1 263 6 hrs., 600 rpm, 104C (220F), g lost NA <6 <1 NR*
Leakage (ASTM D-4290), g NA 7.8 1.0 10 max
Four Ball Wear Test ASTM D-2266 0.45 0.43 0.40 0.60
Fretting Wear (ASTM D-4170) Mg NA 3.5 3.4 10 max
Four Ball EP ASTM D-2596 Weld Point, kgt 315 315 400 200
Four Ball EP ASTM D-2596 Load Wear Index, kgf 47 49 50 30
Timken OK Load Test -ASTM D-2509, lbs 45 45 50 NR*
Low Temperature Torque - ASTM D-4693 N-m, -40C (-40F) 0.46 0.50 5.3 15.5
LT-37 Pumpability, 60F 1,000 g/min. 800 g/min. 360 g/min. NR*
Copper Corrosion - ASTM D-4048 1B 1B 1B NR*
Meets Disc Brake Wheel Bearing Specification: Ford ESA-MiC 198-A NA NA Yes NR*
Meets Disc Brake Wheel Bearing Specification: GM6031-M NA Yes Yes NR*
Meets Disc Brake Wheel Bearing Specification: Chrysler MS-3701 NA NA Yes NR*
Oil Viscosity 40C 130 cSt 130 cSt 130 cSt NR*
Oil Viscosity 100CV 16.5 cSt 16.5 cSt 16.5 cSt NR*
Flash Point - ASTM D-92 450 450 450 NR*
Fire Point - ASTM D-97 480 480 485 NR*
Color Red Red Red NR*
Texture Smooth Smooth Smooth NR*
*NR: Not required for NLGI GC or LB labeling.


AMSOIL Lubricants are formulated to meet or exceed accepted industry specifications. AMSOI L warrants that the use of its lubricants will not cause mechanical damage to any mechanically sound equipment when AMSOIL products are used in full compliance with the company's recommendations. However, the purchaser of these lubricants is responsible for determining if these specifications are adequate and proper for the intended application. The AMSOIL warranty is limited to lubricant performance consistent with indicated specifications. No additional warranty, expressed or implied, can be made.


AMSOIL GL Series Greases are available in 14-oz. cartridges, 16-oz. tubs (GLC only), 35-lb. pails, 120-lb. kegs and 400-lb. drums.

AMSOIL Lubricants are stocked in Superior, Wisconsin and in select regional distribution centers throughout the United States and Canada. AMSOIL will stock additional quantities of lubricants or special order products based on customer requests and regional demands.

If you want to buy AMSOIL products, visit the AMSOIL Online Store.