Gear Master Multi-Purpose
80W-90, 85W-140 gear oil
Gear-Master Multi-Purpose 80W-90/85W-140 gear oils are multi-purpose straight mineral gear lubricants. They are designed to meet the widest range of needs for both off- and on-highway vehicles including trucking, agriculture, construction, and industrial equipment. They are made from high quality base oils using a modern sulfur-phosphorous extreme pressure additive system that provides wear resistance, oxidation stability, and rust/corrosion protection. Gear-Master Multi-Purpose gear oils also provide excellent protection against shock loading of gears.
Features & benefits
- Reduced wear: Superior extreme pressure (EP) properties reduce wear in heavily loaded gear sets where hydrodynamic lubrication may not be complete
- Oil durability: Excellent oxidation stability reduces oil degradation from high temperatures and enables long drain intervals
- Rust and corrosion protection: Outstanding protection against rust and corrosion assures protection of the gear box materials from contaminates
- Foam control: Superior foam reduction aids in reducing oxidation and fluid breakdown
Excellent performance
- API GL-5, MT-1
- Mil-PRF-2105E, SAE J2360
- DAN
- Eaton
- Arvin Meritor (Rockwell) 076-B,E,N,Q, and 0-80
- Navistar TMS 6816
- Mack GO-J Plus, GO-J
- Limited Slip Differential
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Typical specifications
SAE viscosity grade SAE J-300 80W-90 85W-140 API gravity lbs/gal ASTM D-287 26.4/7.46 26.4/7.46 Viscosity @ 40°C, cSt ASTM D-445 146 381 Viscosity @ 100°C, cSt ASTM D-445 14.5 26.1 Viscosity index ASTM D-2270 97 92 Pour point, °F (°C) ASTM D-97 -22 (-30) -11 (-24) Flash point, COC ASTM D-92 400°F 420°F Fire point, COC ASTM D-92 445°F 465°F Color ASTM D-1500 6.5 8.0 Sulfur % ASTM D-2622 2.07 2.12 Copper strip corrosion ASTM D-130 1B 1B
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Recommended for
Gear Master can be used in differentials, axles, final drives and manual transmissions calling for a GL-5/MT-1/EP gear lubricant:
- Trucks, tractors, construction
- On road/off road
- Hypoid and bevel gear differentials
- Limited slip (top off only in cars/light trucks)
- Industrial equipment