MAG 1® SAE 90 GL-4 Gear Oil

Conventional Gear Oils Industrial Lubricants and Greases

Featuring MAG 1® with FMX® Technology – Friction Management for Xtreme protection™. MAG 1® provides unsurpassed protection and performance.

MAG 1® SAE 90 Mineral Gear Oil is specially formulated for multipurpose, extreme pressure applications, including conventional differentials, gear boxes, limited slip rear axles, manual transmissions and hypoid gears. Contains only high-quality paraffinic lubricating oils and the most technologically advanced additive system, which includes extreme pressure, anti-wear and anti-friction agents, and oxidation and corrosion inhibitors. Benefits include:

  • Superior protection against wear, especially under extreme pressure and high torque operation.
  • High resistance to thermal breakdown.
  • Helps prevent foaming, rust and corrosion.
  • Smooths and quiets operation.

Powerful Anti-Friction, Anti-Wear Chemistry

MAG 1® provides outstanding control of friction and wearAdvanced molecules bond together to create a wear-resistant shield that works to build barriers that reduce friction and wear. 

Withstands the Most Extreme Conditions

MAG 1® provide unsurpassed protection even in the harshest conditions of hot and cold climates, pressure, micropitting or oxidation.

Evolutionary Performance™

OEMs continue to evolve driveline designs and operating conditions are becoming more severe.  Today’s gear lubricants require excellent load-carrying capability where extreme pressures and shock loading are expected. One brand has evolved right alongside today’s equipment – MAG 1®. Only the most advanced driveline gear oils meet the difficult challenges of effectively balancing performance, strength and durability.

MAG 1 Driveline Gear Oils are specially engineered and formulated to provide:


  • Excellent protection for load, shear and shock.


  • Outstanding wear and corrosion protection.


  • Thermal stability and long life for gear, bearings and seals.

Industry/OEM Specifications

API GL-4 Meets Requirements

Typical Properties

Color ASTM D1500 6.5
Flash Point °C ASTM D92 224
Flash Point °F ASTM D92 435
Gravity, °API ASTM D287 28.53
Specific Gravity @ 60°F (15.6°C) ASTM D4052 0.8842
Viscosity @ 100°C cSt ASTM D445 14.8
Viscosity @ 40°C cSt ASTM D445 146.5
Viscosity Index ASTM D2270 100

Container/Bulk Availability

5 Gallon Pail Product Number - 00865
Available in Bulk