EL MAR® MID ASH SUPREME GEO
MID-ASH NATURALGAS ENGINE OIL
Phillips 66® El Mar Mid Ash Supreme GEO is a premium mid-ash dispersant-detergent gas engine oil designed for naturally aspirated and moderately to highly turbocharged four-stroke natural gas engines. It is recommended for engines burning sour, landfill, or digester gas, including dual-fuel systems. This oil is also suitable for other four-stroke natural gas engines requiring a mid-ash formulation with 1% sulfated ash.
With a high alkaline reserve (TBN), this oil provides protection in corrosive environments and ensures reliable performance under demanding conditions.
El Mar Mid Ash Supreme GEO provides exceptional resistance to oxidation and nitration, protects against piston scuffing and wear, and reduces sludge and piston deposition.
Links of Interest
Features & Benefits
- Field-proven performance in providing outstanding engine cleanliness
- Proven performance in lean-burn engines
- High dispersancy protects against engine sludge and varnish deposits
- Excellent resistance to oil oxidation and nitration
- Protects against scuffing and wear
- Protects against rust and corrosion
- Protects against valve stem deposits and valve recession
- Compatible with emissions system catalysts
- 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 specifies a mid-ash gas engine oil
Technical Details
Licenses & Approvals:
El Mar Mid Ash Supreme GEO is recommended for use in natural gas engines manufactured by:- Colt-Fairbanks Morse
- Cooper Superior
- Nordberg
- Waukesha
Additional Details:
| SAE Grade | 40 |
| Specific Gravity @ 60°F | 0.894 |
| Density, lbs/gal @ 60°F | 7.45 |
| Color, ASTM D1500 | 8 |
| Flash Point (COC), °C (°F) | 225 (437) |
| Pour Point, °C (°F) | -24 (-11) |
| Viscosity, Kinematic | |
| cSt @ 40°C | 146 |
| cSt @ 100°C | 14.4 |
| Viscosity Index | 96 |
| Cold Cranking Viscosity, cP @(°C) | --- |
| Sulfated Ash, ASTM D874, wt % | 1 |
| Total Base Number (TBN), ASTM D2896 | 8.2 |
| Phosphorus, wt % | 0.028 |
| Zinc, wt % | 0.032 |
Licenses & Approvals:
El Mar Mid Ash Supreme GEO is recommended for use in natural gas engines manufactured by:- Colt-Fairbanks Morse
- Cooper Superior
- Nordberg
- Waukesha
Additional Details:
| SAE Grade | 30 |
| Specific Gravity @ 60°F | 0.886 |
| Density, lbs/gal @ 60°F | 7.38 |
| Color, ASTM D1500 | 8 |
| Flash Point (COC), °C (°F) | 216 (421) |
| Pour Point, °C (°F) | -33 (-27) |
| Viscosity, Kinematic | |
| cSt @ 40°C | 91 |
| cSt @ 100°C | 10.9 |
| Viscosity Index | 104 |
| Cold Cranking Viscosity, cP @(°C) | --- |
| Sulfated Ash, ASTM D874, wt % | 1 |
| Total Base Number (TBN), ASTM D2896 | 8.2 |
| Phosphorus, wt % | 0.028 |
| Zinc, wt % | 0.032 |