AMSOIL 75W-90 Long Life 100% Synthetic Gear Lube

AMSOIL 75W-90 Long Life Synthetic Gear Lube is an extended-drain gear lube engineered to last several times longer and protect gears better than conventional gear oils. This exclusive AMSOIL formulation of premium synthetic base oils and high-performance additives resists acid, carbon and varnish formation from oxidative breakdown. Components run cleaner and last longer. AMSOIL Long Life Synthetic Gear Lube is shear-stable and reduces friction. It maintains its viscosity during extended service for maximum wear control and is fuel efficient. The superior cold-temperature fluidity and high-temperature stability properties of AMSOIL Long Life Synthetic Gear Lube make it excellent for all-season use. AMSOIL Long Life Synthetic Gear Lube helps extend equipment life and reduce maintenance costs.

AMSOIL Long Life Synthetic Gear Lube, in the correct viscosity grade, is recommended for domestic and foreign applications, including over-the-road trucks; light-, medium- and heavy-duty trucks; off-road equipment; commercial vehicles; motorhomes; autos; SUVs; emergency vehicles; buses; delivery/utility vehicles and tractors.

4.9
star rating from
33
total reviews

This AMSOIL product is available in:

Individual Quart Bottles
Individual Gallon Jugs
5 Gallon Pails
16 Gallon Kegs
Buy Now
Product Code:

FGRQT-EA

AMSOIL 75W-90 Long Life 100% Synthetic Gear Lube Review by Dave Mann

AMSOIL 75W-90 Long Life 100% Synthetic Gear Lube Description

AMSOIL 75W-90 Long Life Synthetic Gear Lube is an extended-drain gear lube engineered to last several times longer and protect gears better than conventional gear oils. This exclusive AMSOIL formulation of premium synthetic base oils and high-performance additives resists acid, carbon and varnish formation from oxidative breakdown. Components run cleaner and last longer. AMSOIL Long Life Synthetic Gear Lube is shear-stable and reduces friction. It maintains its viscosity during extended service for maximum wear control and is fuel efficient. The superior cold-temperature fluidity and high-temperature stability properties of AMSOIL Long Life Synthetic Gear Lube make it excellent for all-season use. AMSOIL Long Life Synthetic Gear Lube helps extend equipment life and reduce maintenance costs.

AMSOIL Long Life Synthetic Gear Lube, in the correct viscosity grade, is recommended for domestic and foreign applications, including over-the-road trucks; light-, medium- and heavy-duty trucks; off-road equipment; commercial vehicles; motorhomes; autos; SUVs; emergency vehicles; buses; delivery/utility vehicles and tractors.

AMSOIL Long Life Synthetic Gear Lube

Specifically Engineered for 500,000-Mile Service Life in Over-the-Road Trucks

AMSOIL Long Life Synthetic Gear Lube is an extended-drain gear lube engineered to last several times longer and protect gears better than conventional gear oils. This exclusive AMSOIL formulation of premium synthetic base oils and high-performance additives resists acid, carbon and varnish formation from oxidative breakdown. Components run cleaner and last longer. AMSOIL Long Life Synthetic Gear Lube is shear-stable and reduces friction. It maintains its viscosity during extended service for maximum wear control and is fuel efficient. The superior cold-temperature fluidity and high-temperature stability properties of AMSOIL Long Life Synthetic Gear Lube make it excellent for all-season use. AMSOIL Long Life Synthetic Gear Lube helps extend equipment life and reduce maintenance costs.

AMSOIL 75W-90 Long Life 100% Synthetic Gear Lube
  • High-Load gear and bearing protection
  • Protection from rust and corrosion
  • Better cold-weather shifting
  • Improved efficiency
  • Improved seal life

APPLICATIONS

AMSOIL Long Life Synthetic Gear Lube, in the correct viscosity grade, is recommended for domestic and foreign applications, including over-the-road trucks; light-, medium- and heavy-duty trucks; off-road equipment; commercial vehicles; motorhomes; autos; SUVs; emergency vehicles; buses; delivery/utility vehicles and tractors.

Use AMSOIL Long Life Synthetic Gear Lube in differentials, manual transmissions or other gear applications where one or more of the following standards are specified: API GL-5 & MT-1, MIL-PRF-2105E, Dana SHAES 234 (Formerly Eaton PS-037) for 250,000 miles, Dana SHAES 256 (Formerly Eaton PS-163) for 500,000 miles, Dana SHAES 429A, Mack GO-J & GO-J+, Meritor* 0-76N (75W-90) & 0-80 (80W-140) plus hypoid gear oil specifications from ZF TE-ML 07A and 08 foreign and domestic manufacturers such as GM, Ford and Daimler Chrysler. It can also be used in rear axles where API Service GL-4 lubricant is recommended.

TYPICAL TECHNICAL PROPERTIES

AMSOIL Long Life Synthetic Gear Lube 75W-90 (FGR)

Kinematic Viscosity @ 100°C, cSt (ASTM D445) 15.7
Kinematic Viscosity @ 40°C, cSt (ASTM D445) 115.8
Viscosity Index (ASTM D2270) 143
Brookfield Viscosity, cP (ASTM D2983) 109,000 @ -40°C
Flash Point, °C (°F) (ASTM D92) 244(471)
Pour Point, °C (°F) (ASTM D97) -37(-35)
Copper Strip Corrosion Test (ASTM D130) @ 121°C (250°F) / 3hr 1B
Foam Stability (ASTM D892) 0/0, 0/0, 0/0

SERVICE LIFE

For product service life in differentials, consult your owner’s manual or the original equipment manufacturer (OEM) to establish the application, NORMAL or SEVERE.

For product service life in non-differential applications, consult owner’s manual or the OEM for either normal or severe synthetic oil service intervals. Where service intervals are unavailable, drain at twice the interval for conventional oil.

Note: AMSOIL does not support extended drain intervals where water contamination occurs. Check and service the gear oil frequently when water contamination is possible.

Gear oils should be changed more frequently when operating vehicles or equipment in dusty or dirty conditions unless the gear system is properly sealed and equipped with membrane type breathers.

COMPATIBILITY

AMSOIL Long Life Synthetic Gear Lube is compatible with other synthetic and conventional gear oils. Mixing AMSOIL gear oils with other oils, however, will shorten the oil’s life expectancy and reduce its performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed.

AMSOIL Long Life Synthetic Gear Lube is compatible with most limited-slip differentials. If limited-slip differential chatter occurs, add AMSOIL Slip-Lock® friction modifier additive.

AMSOIL Long Life Synthetic Gear Lube 75W-90 replaces competitors’ 75W-90 and 80W-90 viscosity grades.

AMSOIL Long Life Synthetic Gear Lube 80W-140 replaces competitors’ 80W-140 and 85W-140 viscosity grades

AMSOIL PRODUCT WARRANTY

AMSOIL products are backed by a Limited Liability Warranty. For complete information visit AMSOIL.com/warranty.aspx.

HEALTH AND SAFETY STATEMENT

This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available at AMSOIL.com or upon request at (715) 392-7101. Keep Out of Reach of Children. Don’t pollute. Return used oil to collection centers.

AMSOIL 75W-90 Long Life 100% Synthetic Gear Lube Reviews

5

star rating

Great product

Going to use it in my older tractors. If it is Amsoil, it is great

5

star rating

Satisfaction

Amsoil products are all terrific.

5

star rating

Protect Your Rear End!

Use this exclusively in my rear diff to protect from heavy towing conditions. Pulled the cover off recently for an inspection and still looks new.

Read More Reviews

Additional AMSOIL 75W-90 Long Life 100% Synthetic Gear Lube Resources

Buy Now

SAVE 25% As A Preferred Customer

Sign up today for 25% off all AMSOIL products and enjoy other membership perks and rewards as a preferred customer.