CAT DEO ULS 10W-30
API CK-4 heavy-duty diesel engine oil for engines with aftertreatment, backward compatible
- Heavy-duty diesel
SAE 10W-30
Synthetic-technology diesel oil for EGR and DPF engines, API CK-4, Volvo VDS-4.5
Official approval
Mack EO-O Premium Plus — heavy-duty diesel engine oil
Mack engine oil specification for trucks with a particulate filter, at API CJ-4 level; predecessor of the EOS series.
Official approval
Detroit Fluids Specification 93K218
Detroit Diesel's engine oil specification at API CJ-4 level, for engines with a particulate filter, with capped sulphated ash.
Official approval
Mack EOS-4.5 — heavy-duty diesel engine oil
Mack's engine oil specification matching the API CK-4 level, for Mack and Volvo trucks with exhaust aftertreatment.
Official approval
Renault Trucks RLD-3 — low-SAPS truck oil
Renault Trucks' specification for low-ash oils in Euro V and Euro VI engines with a particulate filter and SCR.
Derived from the vehicle makers' approvals this product meets. Check the specification your vehicle's manual requires.
| Property | Typical value | Method |
|---|---|---|
| Kinematic viscosity @ 100 Cmm2/s | 12 | ASTM D445 |
| Viscosity index | 140 | ASTM D2270 |
| Pour point°C | -33 | ASTM D97 |
| Density @ 15 Cg/ml | 0.867 | ASTM D1298 |
| Total base numbermgKOH/g | 9.6 | ASTM D2896 |
| Ash, Sulfated, mass% | 0.9 | ASTM D874 |
| Flash point, Cleveland Open Cup°C | 218 | ASTM D92 |
| Kinematic viscosity @ 40 Cmm2/s | 82 | ASTM D445 |

Mobil Delvac Modern 10W-30 Full Protection is a high-performance, synthetic-technology diesel engine oil developed to extend engine life in the most severe on- and off-highway applications. Formulated with Trimer additive technology and a mixed detergent system, it targets modern, high-output, low-emission engines equipped with Exhaust Gas Recirculation (EGR) and aftertreatment systems using Diesel Particulate Filters (DPF) and Diesel Oxidation Catalysts (DOC), while remaining fully backwards compatible with older conventional engines. It is recommended by ExxonMobil for on-highway heavy-duty trucking, mixed fleets, and off-highway construction, mining, quarrying and agricultural equipment from American, European and Japanese OEMs, and is biodiesel compatible. Key benefits include superior soot-viscosity control, outstanding thermal and oxidative stability, excellent oil consumption control, strong TBN reserves for extended drain intervals, stay-in-grade shear stability, and excellent low-temperature pumpability. The oil meets or exceeds API CK-4, CJ-4, CI-4 PLUS and CH-4 diesel categories as well as API SN for gasoline engines, and carries approvals including Mack EO-O Premium Plus, MACK EOS-4.5, RENAULT TRUCKS RLD-3, VOLVO VDS-4.5 and Cummins CES 20086/20081.
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