Transmission Oil SAE 90

SAE 90 MineralGear Lubricant

Phillips 66®Transmission Oil SAE 90 is an SAE 90 mineral oil gear lubricant recommended for use in manual transmissions, transfer cases and rear axle assemblies of automotive, farm and off-highway equipment where the manufacturer specifies an API GL-1 gear oil. It also may be used in light-duty industrial applications where a non-compounded ISO VG 150 or AGMA 4 mineral oil is specified.

Features & Benefits

• Good film strength for wear protection

• Good oxidation resistance

• Protects against rust and corrosion

• Good foam resistance


• Heavy-duty, multiple-speed manual transmissions and transfer cases in trucks and buses where the manufacturer specifies an API GL-1, SAE 90 gear oil

• Lightly loaded enclosed industrial gear drives where the OEM specifies a R&O type, AGMA 4 gear oil

• General-purpose lubrication in applications that require a non-compounded, ISO VG 150 mineral oil

Technical Details

Licenses & Approvals

Mineral Gearlube 90 meets the requirements of:

• API Service GL-1

Additional Details
Specific Gravity @ 60°F0.875
Density, lbs/gal @ 60°F7.28
Color, ASTM D15002.5
Flash Point (COC), °C (°F)277 (531)
Pour Point, °C (°F)-17 (1)
cSt @ 40°C155
cSt @ 100°C15.5
SUS @ 100°F813
SUS @ 210°F81.8
Viscosity Index101