Main Menu

Delivery may take 5-7 days due to high seasonal demand.

80W-140 Long Life Synthetic Gear Lube

Product code : FGO05-EA

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

Engineered for extended drain intervals up to 500,000 miles as set by equipment manufacturers for over-the-road trucks and heavy equipment. Provides long life in passenger cars and trucks. Excellent all season summer and winter performance. Outperforms all conventional gear oils.
Engineered for extended drain intervals up to 500,000 miles as set by equipment manufacturers for over-the-road trucks and heavy equipment. Provides long life in passenger cars and trucks. Excellent all season summer and winter performance. Outperforms all conventional gear oils.

80W-140 Long Life Synthetic Gear Lube



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.

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, motor homes, 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.

AMSOIL Long Life Synthetic Gear Lube provides:

  • High Load gear and bearing protection
  • Protection from rust and corrosion
  • Better cold-weather shifting
  • Improved efficiency
  • Improved seal 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.

.
Normal Service
Severe Service
Cars, SUVs, Light Trucks Drain at 100,000 miles of service or according to the owner's manual, whichever is longer Drain at 50,000 miles of service or according to the owner's manual, whichever is longer
Heavy Duty Class 8 Line Haul Follow the OEM drain interval (miles or hours) for synthetic oil up to 500,000 miles or three years, whichever comes first.
Vocational/Delivery Follow the OEM drain interval (miles or hours) for synthetic oil up to 120,000 miles or three years, whichever comes first.
Heavy Duty Off-Road Follow the OEM drain interval (miles or hours) for synthetic oil up to 100,000 miles or two years, whichever comes first.

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 conventional gear oil. Mixing AMSOIL gear oils with other oil, however, reduces the oil's benefits and nullifies the extended service life recommendations.

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 & SAFETY STATEMENT
This product is not expected to cause health concerns when used for the intended applications and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available online at AMSOIL.com or upon request at (715) 392-7101. Keep Out of Reach of Children. Recycle used oil and bottle.

* All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.

80W-140 Long Life Synthetic Gear Lube



80W-140 Long Life Synthetic Gear Lube

  • 5
    great product
    By  oldplow,  a  Verified Buyer  from  ohio  on  November 04, 2020

    Describe the issue

    first time user of Amsoil. what a difference it makes. did differential service on my 4wd vehicles. they roll allot easier. have already ordered my engine oil and filter for next oil change.
    Bottom Line
    Yes, I would recommend this to a friend.
  • 5
    By  Anonymous,  a  Verified Buyer  on  October 25, 2020

    Describe the issue

    Bottom Line
    Yes, I would recommend this to a friend.
  • 5
    Will buy more .
    By  Craig,  a  Verified Buyer  on  June 26, 2019

    Describe the issue

    Product speaks for its self
  • 5
    good product
    By  Dave,  a  Verified Buyer  from  cordova AK  on  October 25, 2018

    Describe the issue

    I have used this product in commercial outdrives for over 10 years. Good life and no broken gears in all those years
    Bottom Line
    Yes, I would recommend this to a friend.
  • 3
    Poor Shifting in Cold Weather
    By  Wildman,  a  Verified Buyer  from  Reno, NV  on  May 12, 2018

    Describe the issue

    I replaced the OEM oil in the manual transmission on a 2014 Subaru Outback at about 60K miles. In the cold weather it was difficult shifting from neutral to first and first to second gears when cold. Shifting improved when the temperature increased after driving several miles. Therefore, I cannot recommend this lubricant for the stated application.
    Bottom Line
    No, I would not recommend this to a friend.
  • 5
    Great lube
    By  bacholiver,  a  Verified Buyer  from  Kennewick WA  on  April 15, 2018

    Describe the issue

    Has always served me well in all my vehicles, whether its the engine, (gas and diesel) Transmission, or differential. I have lived in Florida and in Minnesota and have always had the flow needed to keep things lubed.
    Bottom Line
    Yes, I would recommend this to a friend.
  • 5
    Excellent products I just love them
    By  Stew,  a  Verified Buyer  from  Pittsburgh,pa  on  March 12, 2018

    Describe the issue

    I run it in everything I own
    Bottom Line
    Yes, I would recommend this to a friend.
  • 5
    Love the product
    By  Farmer,  a  Verified Buyer  from  Minnesota  on  February 05, 2018

    Describe the issue

    I do a lot of towing with my vechile, from pulling large wagons such as gravity wagons and livestock trailers. I live in colder climates and never have trouble with my engine turning over hard.
    Bottom Line
    Yes, I would recommend this to a friend.
  • 5
    Better than OEM
    By  Speed41u,  a  Verified Buyer  from  Roanoke  on  January 30, 2018

    Describe the issue

    I started using this back in 2008 after speaking to a rep and someone who used the product he sold. I researched all of the findings and found the product to be superior to others.
  • 5
    Awesome product
    By  Suzuki Man,  a  Verified Buyer  from  Montgomery, Il  on  January 23, 2018

    Describe the issue

    I used it his gear oil for my older 4 door Suzuki sidekick. And can really tell how great it works, quieter running gears, cooler temps. And last a very long time between changes.
    Bottom Line
    Yes, I would recommend this to a friend.