EL MAR® GEO

NON-DETERGENT, ASHLESS NATURAL GAS ENGINE OIL

Phillips 66® El Mar GEO Oil is a high-quality, non-detergent, ashless gas engine oil designed primarily for use in Ajax 2-stroke cycle natural gas engines. The SAE 15W-40 viscosity grade meets the low-temperature viscosity requirements of Ajax engines where cold starts and frequent start/stop cycles may be encountered.

EL MAR® GEO

Features & Benefits

  • Ashless formulation helps minimize port deposits
  • Protects against sludge and varnish formation
  • Excellent resistance to oxidation and nitration
  • Protects against scuffing and wear
  • Protects against rust and corrosion
  • Excellent water-separating properties
  • Low carbon-forming tendency
  • Compatible with emissions system catalysts
  • Does not contain any bright stock, which can cause harmful carbon deposits

Applications

  • Ajax 2-stroke cycle natural gas engines (SAE 15W-40)
  • Older, horizontal-type 2-stroke cycle natural gas engines, such as those manufactured by Cooper-Bessemer and Worthington (SAE 30/40)

Technical Details

  • 15W-40
  • Licenses & Approvals

    El Mar GEO Oil is approved for use under the following OEM specification: #DuPont Specification A4V4

    Additional Details

    SAE Grade 15W-40
    Specific Gravity @ 60°F 0.869
    Density, lbs/gal @ 60°F 7.24
    Color, ASTM D1500 2
    Flash Point (COC), °C (°F) 240 (464)
    Pour Point, °C (°F) -40 (-40)
    Viscosity, Kinematic
    cSt @ 40°C 107
    cSt @ 100°C 14.2
    Viscosity Index 135
    Cold Cranking Viscosity, cP @(°C) 6,400 (-20)
    Acid Number, ASTM D974, mg KOH/g 0.04
    Carbon Residue, ASTM D524, wt % 0.1
    Sulfated Ash, ASTM D874, wt % <0.01
    Phosphorus, wt % 0.011
  • 30/40
  • Licenses & Approvals

    El Mar GEO Oil is approved for use under the following OEM specification: #DuPont Specification A4V4

    Additional Details

    SAE Grade 30/40
    Specific Gravity @ 60°F 0.885
    Density, lbs/gal @ 60°F 7.37
    Color, ASTM D1500 3
    Flash Point (COC), °C (°F) 280 (536)
    Pour Point, °C (°F) -24 (-11)
    Viscosity, Kinematic
    cSt @ 40°C 133
    cSt @ 100°C 13.1
    Viscosity Index 91
    Cold Cranking Viscosity, cP @(°C) ---
    Acid Number, ASTM D974, mg KOH/g 0.14
    Carbon Residue, ASTM D524, wt % 0.05
    Sulfated Ash, ASTM D874, wt % <0.01
    Phosphorus, wt % 0.003