75W/80W-90 Marine Gear Lube (AGM)
 75W/80W-90 Marine Gear Lube (AGM)

High Performance lubricant engineered to meet the demands of marine applications. AMSOIL Universal Synthetic Marine Gear Lube provides:

• Excellent Gear and Bearing Protection even when contaminated with 10% water
• Reduced Friction and Wear
• Rust and Corrosion Protection
• Long Seal Life
• Superior Foam Prevention

Package sizes include:

13-oz. Tube
13-oz. Tubes (case of 6)
1-Quart Bottle
1-Quart Bottles (case of 12)
5-Gallon Pail
16-Gallon Keg
30-Gallon Drum
55-Gallon Drum

Product Code: AGM • Brand: AMSOIL




MSDS Data Sheet

Product Details Tech Data Reviews & RatingRelated Videos

Product Applications
AMSOIL Universal Synthetic Marine Gear Lube is recommended for fresh and salt water applications requiring either 75W-90 or 80W-90 viscosity grade and meeting either API GL-4 or GL-5 performance standards.

Examples of AMSOIL Universal Synthetic Marine Gear Lube applications include:

Product Application Specs

Outboard Lower Units:

• Mercury/Mariner
• Johnson/Evinrude
• Bombardier
• Honda
• Yamaha
• Suzuki
• Force/US Marine
• Nissan
• Tohatsu
• Harbormaster Marine Outboard Drives
• Sears Gamefisher and Seagull

Sterndrives:

• Mercruiser-Bravo
• OMC/Bombardier
• Volvo-Penta
• Yanmar
• Konrad
• Marine Drive Systems

V-Drives:

• Casale & Menkens

Bow & Tunnel Thrusters:

• Harbormaster Marine

Marine Transmissions:

• ZF Marine Transmission

Product Description
AMSOIL Universal Synthetic Marine Gear Lube is an exclusive AMSOIL formulation of synthetic base oils and high performance additives that address the specific concerns of marine applications. It is extreme pressure (EP) additive fortified for superior protection of fast accelerating, high torque/horsepower engines. It protects against shock loading from cavitation of heavily loaded engines.

AMSOIL Universal Synthetic Marine Gear Lube is water resistant. It maintains extreme pressure protection even when contaminated with as much as 10% water. It promotes longer seal life, preventing excessive water leakage. AMSOIL Universal Synthetic Marine Gear Lube protects against rust and is compatible with aluminum, copper and brass alloys.

Extreme Pressure and Foam Stability Testing

Marine gear oils operate in environments subject to water contamination. The chart below demonstrates the ability of AMSOIL Universal Synthetic Marine Gear Lube to maintain designed qualities such as extreme pressure/anti-wear performance and resistance to foaming, even when subjected to 10% water contamination.

The Falex Procedure is measurement of a gear lube's extreme pressure and anti-wear properties. A high value in the Falex Extreme Pressure Test relates to extra extreme pressure protection. AMSOIL Universal Synthetic Marine Gear Lube is not affected by water and provides 50% more extreme pressure protection for long gear and bearing life.

The presence of foam in a lubricant disrupts oil film and promotes wear. Water contamination can increase the likelihood of foaming. Industry standard testing demonstrates zero foam in both new and water-contaminated AMSOIL Universal Synthetic Marine Gear Lube. Other conventional gear lubes can foam when mixed with water, as seen in the graph.

Extreme Pressure and Foam Stability Testing
Test
AMSOIL Universal Synthetic Marine Gear Lube (AGM)
Conventional Gear Lube (A)
Conventional Gear Lube (B)
FALEX Extreme Pressure Load Test B (LbF)
(ASTM D-3233B)
no water
with 10% water
1500
1500
no water
with 10% water
1100
1000
no water
with 10% water
1000
1000

Foam Stability
(ASTM D-892)
Sequence I
Sequence II
Sequence III

no water
with 10% water
0/0
0/0
0/0
0/0
0/0
0/0
no water
with 10% water
0/0
0/0
0/0
0/0
0/0
0/0
no water
with 10% water
0/0
0/0
0/0
375/290
590/0
380/305

HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS).

Click here to view the MSDS Data Sheet for AMSOIL AGM.

Keep out of the reach of children. Don't pollute. Return used oil to collection centers.

TYPICAL TECHNICAL PROPERTIES
AMSOIL Universal Synthetic Marine Gear Lube75W/80W-90 (AGM)
 
Kinematic Viscosity @ 100°C, cSt (ASTM D-445) 14.7
Kinematic Viscosity @ 40°C, cSt (ASTM D-445) 116.0
Viscosity Index (ASTM D-2270) 130
Flash Point °C (°F) (ASTM D-92) 216 (420.8)
Pour Point °C (°F) (ASTM D-97) -43 (-45)
Falex Procedure B (ASTM D-3233) (failure load, LbF.) 1500
Foam Stability (ASTM D-892) (20/50/20 maximum) 0/0/0
AMSOIL Universal Synthetic Marine gear Lube is compatible with other commercially available conventional and synthetic marine gear lubes. Follow manufacturers recommended service intervals. It is generally a good idea to change gear lube at the end of the season prior to storage.

How To Get Your Boat Ready for Storage

Did this product meet your expectations?

(click on a star to rate)
Product Name: 75W/80W-90 Marine Gear Lube (AGM)
Current Rating: 4.95 out of 5 stars
Total Votes: 10 vote(s)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by CkDLND: space

Works great

Works great even up north where I live in 32 degree water

Item Reviewed: 75W/80W-90 Marine Gear Lube (AGM)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by EJ: space

Iwould deffinatly buy this product

I have used the marine gear lube for many years its never let me down I highly recomend this product!!!

Item Reviewed: 75W/80W-90 Marine Gear Lube (AGM)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Joe: space

The best 2cycle oil

I use this in a 1981 75hpJohnson outboard.
Little to no smoke. Smooth running. Cylinders stay clean and does not foul plugs like other oils. Even Evinrude synthetic. Awesome product.

Item Reviewed: 75W/80W-90 Marine Gear Lube (AGM)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Mikeapple01: space

The best synthetic on the market!!!

I've been using Amsoil since the 80's and I'm an ASE certified diesel mechanic with over 30 years of experience. I haven't found any other lubricant that comes close to Amsoil, I recently purchased a boat and drained all the fluids and replaced them with Amsoil marine lubricants. I know I will get years of worry free performance while using Amsoil.

Item Reviewed: 75W/80W-90 Marine Gear Lube (AGM)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by ihboy75: space

Great and will buy again!

Good alternative to standard product

Item Reviewed: 75W/80W-90 Marine Gear Lube (AGM)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by James: space

Highly recommended. Works great.

This product is used in a 2013 Mercury 4 stroke outboard, 150hp. I change the oil every season with about 75 hours of use.

Item Reviewed: 75W/80W-90 Marine Gear Lube (AGM)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Larry: space

Great product, I would buy it again.

I believe synthetic oils are great for any moving metal parts. No wear, No friction, saves money in years to come and makes my engines very dependable.

Item Reviewed: 75W/80W-90 Marine Gear Lube (AGM)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by Daniel: space

I recommend this in top all

Better lube always I used in my Sea Ray Sundancer whit Bravo 3

Item Reviewed: 75W/80W-90 Marine Gear Lube (AGM)

A Verified Buyer is an individual who has purchased the reviewed product and submitted their review through a specific process that tracks purchase history.Reviewed by carb: space

lower motor unit care

easy to use and a great product.

Item Reviewed: 75W/80W-90 Marine Gear Lube (AGM)
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