Gear Oils

75W-140 Gear Oil
API GL-5 and MT-1, MACK GO-J, SAE J2360, Limited Slip

75W-140 Gear Oil

MAG 1 High Performance Gear Oils are specially formulated with only the finest quality, hydrotreated, high viscosity index, paraffinic base oils and the most advanced and rigorously-tested additive system to deliver unsurpassed protection and performance.

Benefits of MAG 1 75W-140 Full Synthetic Gear Oil include:

  • Formulated with 100% synthetic base oils to provide superior gear protection over a wide range of operating and ambient temperatures
  • Formulated with premium extreme pressure additives, rust preventatives, and anitfoam additives to protect hypoid gears, manual transmissions, gear boxes, passenger car and light truck conventional differentials, transmissions and steering gears.


For product numbers and detailed packaging information, please click on the pack size listed on the right hand side of the page.

Inspection Data Typical Physical Properties of
MAG 1 75W-140 Gear Oil
Specific Gravity @ 60°F (15.6°C) ASTM D4052 0.8534
Viscosity @ 40°C cSt ASTM D445 171.8
Viscosity @ 100°C cSt ASTM D445 27.64
Viscosity Index ASTM D2270 200
Color ASTM D1500 1
Pour Point °C (°F) ASTM D5950 -51°C (-60°F)
Gravity, °API ASTM D287 34.31
Brookfield Viscosity at -40°C, cP ASTM D2983 127,000
Flash Point °C ASTM D92 232
Flash Point °F ASTM D92 450

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