EL MAR® MID ASH HEAVY DUTY GEO
MID-ASH NATURAL GAS ENGINE OIL
Phillips 66® El Mar Mid Ash Heavy Duty GEO is a premium mid-ash gas engine oil designed for naturally aspirated and moderately to highly powerful turbocharged four-stroke natural gas engines. It is particularly suited for engines burning sour gas, landfill gas, or digester gas, including dual-fuel engines.
Formulated with field-proven additives, El Mar Mid Ash Heavy Duty GEO delivers excellent resistance to oxidation and nitration, protects against piston scuffing and wear, and reduces sludge and piston deposits for improved engine cleanliness. Its high alkaline reserve (TBN) provides strong protection in corrosive environments, ensuring reliable performance even under demanding conditions.
Links of Interest
Features & Benefits
- Excellent resistance to oxidation and nitration
- High alkaline reserve to combat acidic combustion by-products when burning sour gas
- High dispersancy protects against sludge and varnish formation
- Protects against scuffing and wear
- Protects against rust and corrosion
- Excellent low-temperature performance
- Does not contain any bright stock, which can cause harmful carbon deposits
Applications
- 4-stroke cycle gas and dual-fuel engines burning sour gas or landfill gas
- 4-stroke cycle gas engines in wastewater treatment plants fueled by digester gas
- 4-stroke cycle converted irrigation engines running on natural gas or LPG
- Other 4-stroke cycle natural gas engines where the manufacturer specifi es a mid-ash gas engine oil
Technical Details
Additional Details:
| SAE Grade | 30 |
| Specific Gravity @ 60°F | 0.876 |
| Density, lbs/gal @ 60°F | 7.29 |
| Color, ASTM D1500 | 3.5 |
| Flash Point (COC), °C (°F) | 234 (453) |
| Pour Point, °C (°F) | -36 (-33) |
| Viscosity, Kinematic | |
| cSt @ 40°C | 85.4 |
| cSt @ 100°C | 11.1 |
| Viscosity Index | 117 |
| Cold Cranking Viscosity, cP @(°C) | --- |
| Sulfated Ash, ASTM D874, wt % | 1.0 |
| Total Base Number (TBN), ASTM D2896 | 7.9 |
| Phosphorus, wt % | 0.097 |
| Zinc, wt % | 0.109 |
Additional Details:
| SAE Grade | 40 |
| Specific Gravity @ 60°F | 0.880 |
| Density, lbs/gal @ 60°F | 7.32 |
| Color, ASTM D1500 | 3.5 |
| Flash Point (COC), °C (°F) | 260 (500) |
| Pour Point, °C (°F) | -27 (-17) |
| Viscosity, Kinematic | |
| cSt @ 40°C | 138 |
| cSt @ 100°C | 15.1 |
| Viscosity Index | 111 |
| Cold Cranking Viscosity, cP @(°C) | --- |
| Sulfated Ash, ASTM D874, wt % | 1.0 |
| Total Base Number (TBN), ASTM D2896 | 7.9 |
| Phosphorus, wt % | 0.097 |
| Zinc, wt % | 0.109 |