Phillips 66® AAR 963 Oil is a high-quality lubricant specially developed for year-round lubrication of plain journal bearings in railcar journal boxes. It meets the requirements of the American Association of Railroads (AAR) Specification M-963-84 for All-Year Journal Box Lubricating Oil.

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Features & Benefits

  • Formulated for year-round use
  • Good wear protection
  • Protects against rust and corrosion
  • Good foam resistance


  • Plain journal bearings in railcar journal boxes
  • Traction motor suspension bearings on locomotives

Technical Details

  • ISO Grade: 46
  • Licenses & Approvals

    AAR 963 Oil meets or exceeds the requirements of: #AAR Specification M-963-84

    Additional Details

    ISO Grade 46
    Specific Gravity @ 60°F 0.874
    Density, lbs/gal @ 60°F 7.28
    Color, ASTM 0.5
    Flash Point (COC), °C (°F) 235 (455)
    Pour Point, °C (°F) -37 (-35)
    cSt @ 40°C 50
    cSt @ 100°C 8.4
    SUS @ 100°F 255
    SUS @ 210°F 54.4
    Viscosity Index 143
    Foam Test, ASTM D892, Seq. I, mL 0/0
    Humidity Cabinet Test, ASTM D1748 Pass
    Moisture, ASTM D95, wt % < 0.1
    Pentane Insolubles, ASTM D893 B, wt % < 0.1
    Rust Test, ASTM D665 A&B Pass
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