CAT DEO-ULS Syn 5W-40
Full-synthetic long-drain diesel engine oil for Cat engines, Cat ECF-3, API CK-4
SAE 5W-40
Derived from the vehicle makers' approvals this product meets. Check the specification your vehicle's manual requires.
| Property | Typical value |
|---|---|
| Pour point, °C (ASTM D97) | -45 |
| Viscosity cSt @ 40°C (ASTM D445) | 87 |
| Viscosity cSt @ 100°C (ASTM D445) | 15.2 |
| Viscosity index (ASTM D2270) | 186 |
| Phosphorus, %wt. (ASTM D4951) | 0.111 |
| Sulfated Ash, %wt. (ASTM D874) | 0.99 |
| Sulphur, %wt. (ASTM D2622) | 0.4 |
| TBN (ASTM D2896) | 7.8 |
| Zinc, %wt. (ASTM D4951) | 0.121 |
| Gravity @ 16°C API (ASTM D287) | 36.2 |
We email you this product's sheets in a single archive.

Cat DEO Cold Weather SAE 0W-40 is a synthetic diesel engine oil designed with an extremely stable formula for long-lasting engine protection over a wide temperature range, from -40°F (-40°C) to 104°F (40°C). It exceeds the performance requirements of Cat ECF-3 (Engine Crankcase Fluid Specification) and the API CJ-4 and API SM categories, and is backward compatible, making it well suited to mixed fleets of new and old machines; when used in engines with emissions-reduction technologies it delivers the full life and performance of aftertreatment components. Its special formulation flows readily at low temperatures, reducing startup wear and improving fuel economy in some applications, while outstanding thermal stability and oxidation resistance keep engine components cleaner. In testing it reduced piston deposits by more than 30% and gave more than 80% better viscosity control than ECF-3 standards, helping lower owning and operating costs through fewer oil changes and repairs. Typical characteristics include pour point -45°C, kinematic viscosity 87 cSt at 40°C and 15.2 cSt at 100°C, viscosity index 186, phosphorous 0.111% wt., sulfated ash 0.99% wt., sulfur 0.4% wt., TBN 7.8 and zinc 0.121% wt. Cat DEO Cold Weather can be used in heavy-duty diesel engines from manufacturers requiring API CJ-4, CI-4 PLUS/CI-4 or CH-4 oil, and in automotive gasoline engines requiring API SM oil; it also meets Cummins CES 20081 and Mack EO-N PP '03 OEM performance levels, and supports engines meeting 2007/2010 US on-highway emissions standards, Tier 4 (US), Stage IIIB/IV (EU) and Step 4 (Japan). Distributed in Romania by Bergerat Monnoyeur.
Caterpillar ECF-3
Caterpillar's current engine crankcase fluid category, with capped sulphated ash, for CAT engines fitted with a particulate filter.
The Cummins specification matching the API CK-4 level, for modern heavy-duty diesel engines with exhaust aftertreatment.