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AMSOIL Manual Transmission & Transaxle Gear Lube
SAE 75W-90 API GL-4


A few years have passed since the debut of the AMSOIL Manual Transmission GL-4. It has really become a top seller. First, there aren't too many quality GL-4 75W90 (or 80W90) on the market. The synthetic products offered by our competitors eventually cause shift/downshift issues. I'm writing this due to several calls. One recently was from a fellow Studebaker Hawk owner who called to tell me there was a write-up in the last issue of the Studebaker Club Magazine, the "Turning Wheels". It praised AMSOIL over other brands such as Redline for solving hard shifting issues. Protect your synchronizers!

Use a product approved for specific GM and Chrysler use w/o paying the OEM price! Use AMSOIL MTG!

 

AMSOIL MTG offers synchro protection and 75W90 GL-4 Performance!

Synthetic Manual Transmission and Transaxle
Gear Lube 75W-90 API GL-4 (MTG)

AMSOIL's Manual Transmission Problem Solver - Quality!

AMSOIL Synthetic Manual Transmission and Transaxle Gear Lube (MTG) is designed to meet the special requirements of certain manual transmissions and transaxles as well as those requiring GL-4 performance, such as the New Venture NV4500. Formulated specifically for demanding manual transmission and transaxle applications.

Package sizes include:
Quart Bottle
Quart Bottles (case of 12)
5-Gallon Pail
55-Gallon Drum

 

Download this printable PDF Product Data Sheet for Manual Transmission 75W-90 GL4

Call for wholesale pricing, account set-up or quick ordering: 1-800-579-0580

 

Buy Amsoil Synthetic Manual Transmission Gear Lube 75W90 In the Online Store Now

Concerned about shipping? Anywhere in the US, 12 quarts of any Amsoil product cost only about $11.30. Four to six quarts will cost about $9.10 and the rates decrease from there.

For maximum performance with this popular transmission gear lube please try our fuel additives and Severe Gear differential GL5 hypoid gear lubes as well. The Severe Gear drops temperatures by 50 degrees and can reduce drag leading to a 2 to 3% increase in fuel efficiency.

 

Vehicle Look Up Table: Matches AMSOIL's products to your vehicles.

 

"State of the Art GL-4 Chemistry"
Replacing AMSOIL's prior 80W-90 Synthetic Gear Lube (AGT), the AMSOIL MTG provides improved internal component protection. Many of these transmissions are cast iron and have exhaust pipes close to them, causing them to run hot. Increased operating temperatures can harden seals and cause oil leaks. In addition to lubricating gears, bearings and synchromesh systems, transmission oil must keep seals soft even when temperatures increase.

AMSOIL uses a unique seal additive though out the gear lube line others avoid because of costs. The premium synthetic formulation of AMSOIL Synthetic Manual Transmission and Transaxle Gear Lube is designed to specifically address the needs of these hot running transmissions.

PRODUCT DESCRIPTION
AMSOIL Synthetic Manual Transmission and Transaxle Gear Lube (MTG) is a premium blend of the finest synthetic base oils and advanced, high-performance additives. It is formulated specifically for maximum protection in the most demanding manual transmission and transaxle applications where an extreme pressure GL-4 gear lube is specified, including those where high horsepower/high torque engines and towing or heavy loads increase transmission stress.

AMSOIL MTG helps prevent the thinning effects of mechanical shear. It is formulated to maintain its viscosity and superior film strength for consistent, long-lasting wear protection. AMSOIL Synthetic Manual Transmission & Transaxle Gear Lube excels in hot and cold temperature extremes that exceed the limits of conventional mineral oils. It protects against rust, keeps seals soft for long life, and is compatible with brass synchros for smooth synchromesh shift quality.

Note: GL-4 is a separate gear oil classification. GL-5 is not a upgrade or replacement so if your requirement is GL-4 you NEED to use a GL-4!

Ideal for NV-4500 Transmissions
AMSOIL Synthetic Manual Transmission & Transaxle Gear Lube is a thermally stable, extreme pressure formulation that resists heat, oxidation, acid build-up and varnish. It is the ideal gear lube for high temperature applications, including the New Venture NV-4500 transmission, which retains heat due to its cast iron housing and is often subjected to heavy loads and high torque from turbo-diesel engines.

AMSOIL MTG is the replacement fluid for GM part #12346190 and Chrysler part #4874459 (Chrysler specification #MS-9070).

Ideal for Muscle Car Transmissions
The extreme-pressure design of MTG reduces friction, heat and wear. It withstands the high horsepower and quick shifts common to muscle cars equipped with large-displacement engines.

Ideal for Front-Wheel Drive Transaxles
The advanced synthetic formulation provides superior protection for gears and bearings in front wheel drive transaxles.

Excellent for Service Centers
AMSOIL Synthetic Manual Transmission & Transaxle Gear Lube is a versatile transmission and transaxle lubricant. It reduces inventory needs, is readily available and is cost-effective compared to vehicle OEM-branded products.

Performance Features

  • Reduces friction, heat and wear
  • Superior high temperature stability
  • Resists heat, oxidation, acid build-up and varnish
  • Lasts two times longer than conventional petroleum oils
  • Improves cold-weather shifting

Applications
Recommended for synchronized manual transmissions and transaxles that require 75W-85, 75W-90 or 80W-90 viscosities and any of the following performance specifications: API GL-4 and MT-1, ZF TE-ML 02B, 16A, 17A and 19A, Chrysler MS-9070, MAN 341 ML. Recommended for use in NV 4500 transmissions, and replaces GM part #12346190 and Chrysler part #4874459.

Meets GL-4 performance specifications required by some models of Acura, Hyundai, Infiniti, Kia, Land Rover, Lexus, Mazda, Mitsubishi, Nissan, Subaru, Suzuki, Toyota, Volkswagen, Hino Mitsubishi-Fuso, and Zetor.

Ideal for muscle car transmissions such as Muncie, Borg Warner, Saginaw, Ford Toploader, Dearborn and New Process. Also recommended for Gear Vendors Gear Splitters.

Service Life
Under normal operating conditions AMSOIL MTG will last two times longer than conventional petroleum GL-4 gear oils. Where the original equipment manufacturer (OEM) recommends synthetic oils, follow the OEM drain interval (such as NV 4500).

 

TYPICAL TECHNICAL PROPERTIES
Synthetic Manual Transmission and
Transaxle Gear Lube 75W-90 API GL-4
(MTG)
Kinematic Viscosity @ 100°C, cSt (ASTM D-445)
14.8
Kinematic Viscosity @ 40°C, cst (ASTM D-445)
88.4
Viscosity Index (ASTM D-2270)
176
Flash Point, °C (°F) (ASTM D-92) 150°C Min.
206 (403)
Pour Point, °C (°F) (ASTM D-97)
-46 (-51)
4-Ball Wear 75°C, 1200 rpm, 40kg, 1 hr.
0.45mm
Brookfield Viscosity @ -40°C
46,005
Foam Stability (ASTM D-892) (20/50/20)
0/0/0
Copper Corrosion (3 hr, 121°C) (ASTM D-130)
1B

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See the AMSOIL Synchromesh MTF 5W30 Manual Transmission Fluid

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