Skip to Main Content
Shop by Vehicle
Roll over image to zoom in

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

Product code : FGRQTC-EA

  • Specifically engineered for 500,000-mile (805,000 km) service life in over-the-road trucks
  • High-load gear and bearing protection
  • Protection from rust and corrosion
  • Better cold-weather shifting
  • Improved efficiency
  • Improved seal life

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



Extended-drain lubricant engineered to last longer and protect gears better than conventional gear oils. Reduces wear, conditions seals and helps prevent rust. Promotes longer equipment life and reduced maintenance costs.

See the Product Data Bulletin for full details.

PROVIDES LONG SERVICE LIFE

  • Engineered for extended drain intervals up to 500,000 miles (805,000 km) as set by equipment manufacturers for over-the-road trucks and heavy equipment.
  • Provides long life in passenger cars and trucks.
  • Lasts several times longer than conventional lubricants for less maintenance and increased convenience.

FIGHTS GEAR & BEARING WEAR

  • Shear-stable formulation resists viscosity loss from mechanical activity for maximum gear and bearing protection.
  • Forms a durable protective film between metal components to guard against metal-to-metal contact.
  • Premium synthetic base oils and additives resist chemical breakdown for long-lasting protection.

INCREASES EFFICIENCY & CONVENIENCE

  • Provides improved cold-temperature fluidity compared to conventional lubricants, which reduces energy lost to friction and maximizes fuel economy.
  • Resists acids to maintain cleanliness and efficiency.
  • Superior cold-temperature fluidity and high-temperature stability make AMSOIL Long Life Synthetic Gear Lube excellent for all-season use.
  • Recommended for (not limited to) 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.

See the Product Data Bulletin for full details.

*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.

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

Data Bulletin

Warranty

SDS



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

  • 5 star rating
    Gear lube
    By  SCOTT,  a  Verified Buyer  from  Michigan  on  January 28, 2024
    highly recommended
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great product
    By  PATRICK,  a  Verified Buyer  from  Wichita, KS  on  January 02, 2024
    Going to use it in my older tractors. If it is Amsoil, it is great
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Gear lube and Oil change kit for a 5.7L hemi. Dodge.
    By  Larry ,  a  Verified Buyer  from  WI  on  December 16, 2023
    I ordered this gear lube and oilchange kit for my Hemi 5.7 L. on Thursday night and had the order by noon on Saturday. Great service . Great products.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Gear Lube for my Tundra
    By  R,  a  Verified Buyer  from  MD  on  December 09, 2023
    What can I say, It Doesn't Get Any Better Than AmsOil. I've been using it for years. It's Peace of Mind, in a bottle. Thank you.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    75W90
    By  GARY L,  a  Verified Buyer  from  Richmond Ky  on  September 10, 2023
    I use in many farm tractors, disc mowers and gear boxes on bush hog. Superior quality product
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Satisfaction
    By  Larry,  a  Verified Buyer  from  Iowa  on  July 01, 2023
    Amsoil products are all terrific.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Protect Your Rear End!
    By  Gregory,  a  Verified Buyer  from  Washington  on  April 20, 2023
    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.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    ONLY AMSOIL
    By  MIRCEA,  a  Verified Buyer  from  Schaumburg, IL  on  January 13, 2023
    After using different oil brands, I’ve reached to Amsoil through a friend of mine. Since then, about 7 years ago , it’s ONLY AMSOIL. Regarding of this type of oil, 75W-90, after around 250K miles, the color of the oil was the same like new one…
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    good stuff
    By  WILLIAM,  a  Verified Buyer  from  maryland  on  November 13, 2022
    have had no issues. I refill my lower unit when it is cold but this pumps well in low temps. I do this to prevent any water freezing in the unit. So far no water so I can't say how it does. Did break the lower unit at speed and the oil floated well as I was able to use an oil mat and collect a lot of the lost fluid.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Poor courier service
    By  GERRY,  a  Verified Buyer  on  November 01, 2022
    The product is good. The delivery was atrocious. It took 1 day to get from Edmonton to Calgary. It took 3 days and 10 hours to get it delivered within Calgary city limits.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?