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AMSOIL Gear Lubes

Synthetic Gear Lubes

Provide the long-lasting protection, fuel efficiency and dependability needed for top performance, even in extreme-pressure conditions. Stay fluid in cold temperatures for easy cold-weather shifting. 

Excellent for use in passenger cars and trucks requiring a GL-5 gear lube, including those with limited slip differentials. Racers and truckers use them, and they will work miracles in your manual transmission or differential. Product Codes: AGR, AGL, AGT, AGO

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SAE 75W-90 SYNTHETIC GEAR LUBE: GL-2 though GL-5. Product Code: AGR
SAE 80W-90 SYNTHETIC GEAR LUBE: GL-2 through GL-5. Product Code: AGL
SAE 80W-90 SYNTHETIC GEAR LUBE: GL-4. Product Code: AGT, ALU
SAE 85W-140 SYNTHETIC GEAR LUBE: GL-2 through GL-5. Product Code: AGO

PRODUCT DESCRIPTION

AMSOIL Synthetic Gear Lubes are extreme pressure lubricants engineered specifically to meet the high temperature/high load demands of today's geared equipment. AMSOIL Synthetic Gear Lubes, unlike conventional lubricants, don't break down in extreme heat and form damaging deposits, varnish and sludge. AMSOIL Synthetic Gear Lubes maintain their protective capability even in thermally stressed conditions, preventing the ridging, rippling and spalling caused by surface distress. In addition, the superior lubricity of AMSOIL Synthetic Gear Lubes improves fuel economy and provides limited slip capability.
Resist Oxidation and Thermal Breakdown
AMSOIL Synthetic Gear Lubes resist the damaging effects of heat and oxidation at temperatures much higher than conventional gear lubes can resist. AMSOIL Synthetic Gear Lubes inhibit the formation of acids and will not thicken or develop sludge, even under severe operating temperatures such as those encountered in heavy hauling and fleet operation.
Reduce Friction
AMSOIL Synthetic Gear Lubes have an extremely low coefficient of friction due to its synthetic construction. With reduced friction, excessive operating temperatures in transmissions and differentials are reduced by 20°F to 50°F. By controlling friction, AMSOIL Synthetic Gear Lubes reduce component wear, resist thermal degradation and improve fuel economy up to five percent.
Provide Low Temperature Protection

AMSOIL Synthetic Gear Lubes remain fluid at extremely low temperatures to provide instant lubrication to components during start-up. In low temperatures, conventional gear lubricants thicken to make shifting difficult. At temperatures of 0°F (-18°C), it can take as long as 18 minutes for gear lube to flow and lubricate the front pinion bearing of a differential. AMSOIL 75W-90 only takes 45 seconds to 2 minutes. AMSOIL Synthetic Gear lubes resist low temperature thickening to provide superior component protection, smoother shifting and increased fuel economy.

Protect Against Rust and Corrosion
Moisture penetration can cause the rusting of gears and bearings. AMSOIL Synthetic Gear Lubes coat components with a durable, protective film to prevent the formation of harmful rust or corrosion.
High Load Carrying Capacity
AMSOIL Synthetic Gear Lubes have excellent load carrying capabilities to protect gear surfaces in high load and speed conditions. They maintain their viscosity when exposed to the extreme shearing forces of hypoid differentials. AMSOIL Synthetic Gear Lubes provide an extra margin of protection that effectively increases gear life.
Proved Seal Compatibility
AMSOIL Synthetic Gear Lubes increase seal life and reduce oil leakage due to pressure build-up. They are compatible with the elastomer materials used to make seals and will not cause excessive swelling, shrinkage or hardening.
Protect Against Surface Distress
AMSOIL Synthetic Gear Lubes are thermally durable to protect gears against surface distress in extreme pressure conditions. They provide a tough lubricating film that resists the wear, pitting and spalling caused by surface distress. With their superior film protection, AMSOIL Synthetic Gear Lubes maintain their extreme pressure additives to increase component life.
Inhibit Foaming
AMSOIL Synthetic Gear Lubes contain special anti-foam additives to inhibit the formation of air bubbles in the gear box. When foaming is eliminated, lubricant circulation and load-carrying ability are improved.

SERVICE LIFE

With their chemically advanced formulation, AMSOIL Synthetic Gear Lubes last longer than conventional petroleum gear lubes. In non-commercial passenger vehicles under normal conditions, AMSOIL Synthetic Gear Lubes do not have to be drained. In situations where severe water and/or dirt contamination occurs, a chemical lube analysis can determine if the gear lube is still serviceable. Also, AMSOIL Synthetic Gear Lubes can be recycled along with used motor oil because they contain no chlorine.

APPLICATION

AMSOIL 75W-90, 80W-90 AND 85W-140 Gear Lubes exceed the lubrication and performance requirements for gear boxes where API MT-1, GL-4 or GL-5 lubricants are specified. AMSOIL Synthetic Gear Lubes provide limited slip performance. Although generally not necessary, manufacturers' limited slip additives may be used in conjunction with AMSOIL Synthetic Gear Lube.

After changing a vehicle's limited slip lubricant, drive the vehicle in a tight "figure 8" pattern (lock to lock turns) for a minimum of eight repetitions.

AMSOIL 80W-90 GL-4 Gear Lube is recommended for marine outboard and stern drive lower unit gears and bearings. It is also recommended where the manufacturer specifies GL-4 performance. AMSOIL 80W-90 GL-4 Gear Lube is not recommended as a replacement for API GL-5 products.

AMSOIL PRODUCT WARRANTY

AMSOIL INC. warrants that the use of its products will not cause mechanical damage to any mechanically sound equipment when AMSOIL INC. products are used in full compliance with the company's recommendations.

TYPICAL TECHNICAL PROPERTIES

TYPICAL TECHNICAL PROPERTIES

AMSOIL Synthetic Gear Lubes

AGR SAE 75W-90 (GL-2 through GL-5)

AGL SAE 80W-90 (GL-2 through GL-5)

AGT, ALU SAE 80W-90 (GL-4)

AGO SAE 85W-140 (GL-2 through GL-5)

Kinematic Viscosity @ 100°C, cSt (ASTM D-445)

 15.3

15.3

 14.9 27.8

Kinematic Viscosity @ 40°C, cSt (ASTM D-445)

 112.7

141.2

 129.0 329.0

Flash Point °C (°F) (ASTM D 92)

 206 (403) 208 (407) 224 (435) 210 (410)

Pour Point °C (°F) (ASTM D 97)

 -45 (-49)

-36 (-33)

 -36 (-33) -25 (-13)
Four-Ball Wear Test (ASTM D-4172B: 40kg, 75°C, 1200 rpm, 1 hr) Scar diameter, mm 0.40 0.38 0.38 0.35
 

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