Phillips 66® Triton Syngear FE is a premium quality, synthetic, fuel-efficient (FE) API GL-5 automotive gear lubricant designed for use in passenger car and truck axles with hypoid gear sets operating in extreme temperatures or under severe driving conditions. It has been specifically formulated to provide improved fuel economy compared to typical mineral SAE 80W-90 or synthetic SAE 75W-90 gear oils.

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Features & Benefits

  • Extended drain, all-season performance
  • Outstanding oxidation resistance and thermal stability to minimize sludge and varnish formation
  • Excellent thermal durability and extreme-pressure properties for extended gear life
  • 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
  • Higher fuel efficiency compared to typical conventional SAE 80W-90 and synthetic SAE 75W-90 gear oils


  • Service fill of conventional differentials in passenger cars and trucks
  • Top-off only of limited-slip differentials in passenger cars and light trucks(1)
  • 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 API GL-5 or MT-1 gear oil

    (1)Note: For complete drain and refill, many limited-slip differentials may require the manufacturer’s specified gear lubricant or supplemental additive. Refer to the owner’s manual for specific requirements.

Technical Details

  • 75W-90
  • Licenses & Approvals

    Triton Syngear FE meets or exceeds the requirements of: #API Service GL-5, MT-1#International (Navistar) TMS 6816#Mack GO-J Plus#Meritor O76-N#MIL-PRF-2105E#SAE J2360

    Triton Syngear FE is approved for service fill under the following OEM specifications: #Dana SHAES-256 Rev C, SHAES-429

    Additional Details

    SAE Grade 75W-90
    Specific Gravity @ 60°F 0.891
    Density, lbs/gal @ 60°F 7.42
    Color, Visual L 2.0
    Flash Point (COC), °C (°F) 215 (419)
    Pour Point, °C (°F) -45 (-49)
    Viscosity, Brookfield
    cP @ -40°C 90000
    Viscosity, Kinematic
    cSt @ 40°C 103
    cSt @ 100°C 15
    Viscosity Index 152
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