Mobil Delvac 1 5W-40
Synthetic heavy-duty diesel oil with long-drain capability, ACEA E4/E7, API CI-4 PLUS
- Heavy-duty diesel
SAE 5W-40
Synthetic heavy-duty diesel engine oil for severe service, long-drain, ACEA E4/E7
ViscositySAE
Recommended for
Same grade SAE 5W-40 · Heavy-duty diesel
Same grade SAE 5W-40 · Cars
Same grade SAE 5W-40 · High-speed marine
Business customers only. We sell wholesale, invoiced to registered companies.
Official approval
Renault Trucks RLD-2 — heavy-duty diesel engine oil
Renault Trucks specification for extended-drain truck engine oils at ACEA E7 level, without a low-ash requirement.
Official approval
Volvo engine oil specification for Euro III–V trucks without a particulate filter, with severe soot control for EGR engines.
Official approval
MTU's highest oil quality category: multigrade oils for the most severe MTU engine duty.
Official approval
MAN M 3277 — extended-drain engine oil
MAN's specification for synthetic extended-drain truck engine oils, in engines without a particulate filter.
Derived from the vehicle makers' approvals this product meets. Check the specification your vehicle's manual requires.
| Property | Typical value | Method |
|---|---|---|
| Density @ 15.6 Cg/ml | 0.849 | ASTM D1298 |
| Kinematic viscosity @ 100 Cmm2/s | 15.4 | ASTM D445 |
| Kinematic viscosity @ 40 Cmm2/s | 92.7 | ASTM D445 |
| Total base numbermgKOH/g | 14.5 | ASTM D4739 |
| Ash, Sulfated, mass% | 1.2 | ASTM D874 |
| Flash point, Cleveland Open Cup°C | 221 | ASTM D92 |
| Viscosity index | 174 | ASTM D2270 |
| Pour point°C | -48 | ASTM D97 |

Mobil Delvac Ultra 5W-40 Ultimate Defense is an advanced synthetic technology ultra high performance diesel engine oil that provides excellent lubrication, including long drain capability, helping towards long engine life for diesel engines operating in severe applications. Its advanced technology delivers exceptional performance in both turbo-charged and older naturally aspirated engines, and it is recommended for a wide range of heavy-duty applications and operating environments in trucking, mining, construction, agriculture and marine use; it is also fully compatible with conventional mineral oils. Excellent thermal and oxidation stability controls low-temperature sludge build-up and high-temperature varnish deposits, while a high TBN helps towards extended drain intervals with high-sulphur fuels. Advanced formulation and viscometrics maintain viscosity in severe, high-temperature service, and excellent low-temperature pumpability supports easier engine start-up with reduced wear. Good corrosion resistance helps towards long life of critical wear surfaces, low volatility and excellent wear and bore-polishing control aid oil consumption control, and component compatibility supports long gasket and seal life. Recommended for super high performance diesel applications, including on-highway high speed/high load and short-haul pick-up/delivery duty as well as off-highway and marine engines in severe low speed/heavy load conditions, on diesel equipment from European builders. SAE 5W-40, it carries approvals including RENAULT TRUCKS RLD-2, VOLVO VDS-3, MTU Oil Category 3, MAN M 3277/3377, Mack EO-N and Cummins CES 20076/20077/20078, and meets or exceeds API CH-4, CI-4, CI-4 PLUS, JASO DH-1, ACEA E4/E7, Caterpillar ECF-2 and ISUZU DEO (w/o DPD equipped vehicles).
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