EL MAR® T GEO
VERY LOW-ASH NATURAL GAS ENGINE OIL
Phillips 66® El Mar T GEO is a premium, very low-ash dispersant-detergent gas engine oil designed for naturally aspirated and turbocharged low- to medium-speed two-stroke and four-stroke natural gas engines.
Formulated with field-proven additives, El Mar T GEO delivers reliable lubrication under demanding conditions. It resists oxidation and nitration, protects rings and liners from wear, minimizes sludge and piston deposits for improved engine cleanliness, and guards against corrosion. Its advanced deposit control keeps ports clean in two-stroke engines while ensuring both two-stroke and four-stroke engines operate efficiently.
Links of Interest
Features & Benefits
- Field-proven performance in providing excellent engine cleanliness
- Good dispersancy protects against sludge and varnish formation
- Low-ash formulation helps minimize port deposits
- Excellent resistance to oxidation and nitration
- Protects against scuffing and wear
- Protects against rust and corrosion
- Does not contain any bright stock, which can cause harmful carbon deposits
Applications
- Low-to medium-speed, 2-stroke cycle gas engines where port plugging is a concern
- Low-to medium-speed, naturally aspirated 4-stroke cycle gas engines
- Medium-speed, 4-stroke cycle gas engines operating under moderate loads
Technical Details
Licenses & Approvals:
El Mar T GEO is recommended for use in natural gas engines manufactured by:- Ajax
- Cooper Bessemer
- Superior
- Clark
- Dresser Rand (Category I & II)
- Waukesha
- Caterpillar
Additional Details:
| SAE Grade | 30 |
| Specific Gravity @ 60°F | 0.8812 |
| Density, lbs/gal @ 60°F | 7.34 |
| Color, ASTM D1500 | 3.5 |
| Flash Point (COC), °C (°F) | 260 (500) |
| Pour Point, °C (°F) | -30 (-22) |
| Viscosity, Kinematic | |
| cSt @ 40°C | 85.6 |
| cSt @ 100°C | 10.4 |
| Viscosity Index | 103 |
| Cold Cranking Viscosity, cP @ -20°C | --- |
| Sulfated Ash, ASTM D874, wt % | 0.15 |
| Total Base Number (TBN), ASTM D2896 | 2.1 |
Licenses & Approvals:
El Mar T GEO is recommended for use in natural gas engines manufactured by:- Ajax
- Cooper Bessemer
- Superior
- Clark
- Dresser Rand (Category I & II)
- Waukesha
- Caterpillar
Additional Details:
| SAE Grade | 40 |
| Specific Gravity @ 60°F | 0.886 |
| Density, lbs/gal @ 60°F | 7.38 |
| Color, ASTM D1500 | 3.5 |
| Flash Point (COC), °C (°F) | 280 (536 |
| Pour Point, °C (°F) | -30 (-22) |
| Viscosity, Kinematic | |
| cSt @ 40°C | 123 |
| cSt @ 100°C | 13.2 |
| Viscosity Index | 101 |
| Cold Cranking Viscosity, cP @ -20°C | --- |
| Sulfated Ash, ASTM D874, wt % | 0.14 |
| Total Base Number (TBN), ASTM D2896 | 2.1 |
Licenses & Approvals:
El Mar T GEO is recommended for use in natural gas engines manufactured by:- Ajax
- Cooper Bessemer
- Superior
- Clark
- Dresser Rand (Category I & II)
- Waukesha
- Caterpillar
Additional Details:
| SAE Grade | 15W-40 |
| Specific Gravity @ 60°F | 0.8715 |
| Density, lbs/gal @ 60°F | 7.257 |
| Color, ASTM D1500 | 3 |
| Flash Point (COC), °C (°F) | 233 (451) |
| Pour Point, °C (°F) | -39 (-38) |
| Viscosity, Kinematic | |
| cSt @ 40°C | 103 |
| cSt @ 100°C | 14 |
| Viscosity Index | 138 |
| Cold Cranking Viscosity, cP @ -20°C | 5370 |
| Sulfated Ash, ASTM D874, wt % | 0.15 |
| Total Base Number (TBN), ASTM D2896 | 2.1 |