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Phillips 66 Syngear SS SAE Grade 75W-140, Lubricant
Categories: Fluid; Lubricant

Material Notes: Syngear SS is a synthetic, multipurpose, API GL-5 automotive gear lubricant. It is specifically designed for use in passenger car and truck axles with hypoid gear sets operating in extreme temperatures or under severe driving conditions. It is formulated to provide long service life and extended gear life in automotive differentials operating under varying conditions of speed, load, temperature and torque. The carefully balanced formulation is designed to minimize oxidative sludge and varnish formation, reduce wear, prevent scoring damage, and protect against metal fatigue and spalling damage under shock-load conditions. Syngear SS combines outstanding thermal stability and oxidation resistance at high temperatures with outstanding low-temperature properties to ensure excellent performance over a wide temperature range. It has been shown in field tests to lower operating temperatures in axles when compared with conventional mineral gear oils.

Applications:

  • Service fill of conventional differentials, and top-off only of limited-slip differentials, in passenger cars and trucks
  • Service fill of differentials, final drives and transfer cases in some off-highway equipment
  • Non-synchronized manual transmissions in trucks, buses and heavy equipment where the manufacturer specifies an SAE 75W-140, API GL-5 or MT-1 gear oil
Syngear SS meets or exceeds the requirements of:
  • API Service GL-5, MT-1
  • Ford WSL-M2C192-A
  • Meritor O76-M
  • MIL-PRF-2105E
  • SAE J2360
Syngear SS is approved for service fill under the following OEM specification:
  • Mack GO-J
Features/Benefits:
  • Extended drain, all-season performance
  • Excellent shear stability
  • Outstanding thermal stability to minimize sludge and varnish formation
  • Excellent thermal durability for extended gear life at elevated temperatures and under extreme-pressure conditions
  • High load-carrying capacity for protection against scuffing and wear
  • High shear stability
  • Outstanding low-temperature properties
  • Protects against rust and corrosion
  • Good foam resistance
  • Reduces axle operating temperatures compared with conventional mineral gear oils

Information provided by Phillips 66 Lubricants.

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Physical PropertiesOriginal ValueComments
Specific Gravity 0.867 g/cc
Density 7.22 lb/gal
Brookfield Viscosity 139000 cP
@Temperature -40.0 °C
Viscosity Measurement 172Index
Kinematic Viscosity at 40°C (104°F) 185 cSt
Kinematic Viscosity at 100°C (212°F) 25.6 cSt
ASTM Color 1.5ASTM D1500
 
Thermal PropertiesOriginal ValueComments
Pour Point -46.0 °C
Flash Point 190 °CCOC

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WCON5287 / 198540

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