CAT DEO-ULS 15W-40
API CK-4 heavy-duty diesel engine oil for engines with aftertreatment, backward compatible
- Heavy-duty diesel
SAE 15W-40
Synthetic-technology diesel oil for EGR and DPF engines, API CK-4, Cat ECF-3, ACEA E11
ViscositySAE
Recommended for
Same grade SAE 15W-40 · Heavy-duty diesel
Same grade SAE 15W-40 · Cars
Same grade SAE 15W-40 · Tractors (STOU)
Business customers only. We sell wholesale, invoiced to registered companies.
Official approval
Detroit Fluids Specification 93K222
Detroit Diesel's current heavy-duty diesel engine oil specification, at API CK-4 level, with increased oxidation and aeration requirements.
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Mack EO-N — truck engine oil (superseded)
Mack engine oil specification preceding EO-N+ and EO-O Premium Plus.
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.
Derived from the vehicle makers' approvals this product meets. Check the specification your vehicle's manual requires.
| Property | Typical value | Method |
|---|---|---|
| Total base numbermgKOH/g | 9.8 | ASTM D2896 |
| Ash, Sulfated, mass% | 0.9 | ASTM D874 |
| Pour point°C | -33 | ASTM D97 |
| Viscosity index | 130 | ASTM D2270 |
| Kinematic viscosity @ 100 Cmm2/s | 14.1 | ASTM D445 |
| Flash point, Cleveland Open Cup°C | 225 | ASTM D92 |
| Kinematic viscosity @ 40 Cmm2/s | 109 | ASTM D445 |

Mobil Delvac Modern 15W-40 Full Protection is a synthetic-technology, high performance diesel engine oil that helps extend engine life in the most severe on- and off-highway applications while delivering outstanding performance in 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). Fully backwards compatible, it also performs excellently in older conventional engines, and it is biodiesel compatible. It provides outstanding protection in the most demanding diesel engines of Caterpillar, Cummins, Detroit, Deutz, Mack, Mercedes-Benz, Renault, MAN, Navistar, Volvo and others, and is recommended for on-highway heavy-duty trucking and off-highway construction, mining, quarrying and agricultural use, as well as high-performance gasoline engines and mixed fleets. Key benefits include superior soot-viscosity control, outstanding thermal and oxidative stability, excellent oil consumption control, strong TBN reserves with stay-in-grade shear stability, excellent low-temperature pumpability, and component compatibility for long gasket, seal and DPF/DOC life. It meets or exceeds API CK-4, CJ-4, CI-4 PLUS, CH-4, SL/SM/SN/SP, JASO DH-2, Caterpillar ECF-3 and ACEA E7/E11, with approvals including Mack EO-N Premium Plus 03, MACK EOS-4.5, RENAULT TRUCKS RLD-3, VOLVO VDS-4.5 and Cummins CES 20081/20086.
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