Phillips 66® Triton Synthetic MTF (Manual Transmission Fluid) is a full-synthetic, fuel-efficient transmission lubricant designed for use in heavy-duty commercial manual transmissions operating in extreme temperatures and/or extended service intervals. It combines outstanding low-temperature properties with outstanding oxidation resistance and thermal stability at high temperatures to provide excellent all-climate, year-round performance. It provides improved fuel efficiency of up to 1.5% compared with previous-generation SAE 50 manual transmission fluids.

You are currently viewing TRITON® SYNTHETIC MTF

Features & Benefits

  • Extended drain, all-season performance
  • Outstanding oxidation resistance and thermal stability to minimize sludge and varnish formation
  • Improved low-temperature properties for easier shifting in cold weather
  • Improved fuel efficiency
  • High shear stability
  • High load-carrying capacity
  • Protects against component wear and gear micropitting
  • Protects against rust and corrosion
  • Good foam resistance
  • Excellent seal compatibility


  • Heavy-duty manual and semi-automatic transmissions in commercial vehicles where the OEM specifies a non-EP SAE 40 or SAE 50 API MT-1 transmission fluid, an API GL-1 SAE 90 gear oil, or an SAE 40 or SAE 50 heavy-duty engine oil

Technical Details

  • 40
  • Licenses & Approvals

    Triton Synthetic MTF meets or exceeds the requirements of:#API Service MT-1#Navistar MPAPS TMS 6816#Mack TO-A Plus#Meritor O-81

    Triton Synthetic MTF is approved for service fill under the following OEM specification:#Eaton PS-386 (supercedes Eaton PS-164 Rev 7)

    Additional Details

    SAE Grade 40
    Specific Gravity @ 60°F 0.85
    Density, lbs/gal @ 60°F 7.08
    Color, Visual Amber
    Flash Point (COC), °C (°F) 238 (460)
    Pour Point, °C (°F) -42 (-44)
    Viscosity, Brookfield 7000
    cP @ -40°C 51900
    Viscosity, Kinematic 34
    cSt @ 40°C 95.1
    cSt @ 100°C 14.8
    Viscosity Index 163
Search this website Type then hit enter to search