
Delo 400 SLK SAE 15W-40
Proven performance heavy-duty diesel engine oil

Delo® 400 SLK SAE 15W-40 is a proven performance heavy duty diesel engine oil designed to meet industry and engine manufacturers’ performance requirements in onand off-highway diesel applications.
- Delo 400 SLK SAE 15W-40 is recommended for many naturally aspirated and turbocharged four-stroke diesel engines in which the ACEA E9, E11, API CK-4 grade, and SAE 15W-40 viscosity grade are recommended.
- Delo 400 SLK SAE 15W-40 is specifically formulated for on-highway applications, including GHG 17 compliant diesel engines with lower CO2 emissions, 2010 compliant low emission diesel engines, and Euro I to Euro VI compliant engines*; with SCR, with or without DPF and EGR systems.
- Delo 400 SLK SAE 15W-40 is also recommended for offhighway applications including agricultural equipment. It is formulated for newer engines adapted for the most stringent emission standards in construction, agriculture, marine and mining applications with SCR, DPF and EGR systems. These newer engines generally meet Tier IV (2014) emissions requirements.
- Delo 400 SLK SAE 15W-40 is suitable for use in stopand-go vehicles with high soot loading such as buses and waste collection trucks and is compatible with previous engine models* and previous API Oil Services Categories.
*Recommendations may differ between engine manufacturers so driver manuals and/or dealers should be consulted if in doubt.
- Designed with proven performance detergent and dispersant additives, offering piston deposit control and turbocharger protection.
- Contributes to soot dispersancy, wear and corrosion protection in cylinders, pistons, rings, and valve train components.
- Backwards compatible with API Oil Service Categories in many naturally aspirated, turbocharged and electronically controlled/low emission engines.
- Formulated for optimum DPF life with minimal downtime and cleaning, helping reduce maintenance costs.
Detroit Diesel |
DFS 93K222 |
Deutz |
DQC III-18 LA |
Mack |
EOS-4.5 |
Renault Trucks |
RLD-3 |
Volvo |
VDS-4.5 |
ZF |
TE-ML 04C |
ACEA |
E11, E9 |
API |
CK-4, CJ-4, CI-4 Plus, CI-4, CH-4 |
Caterpillar |
ECF-3 |
Cummins |
CES 20086 (approval request submitted), CES 20081 |
DAF |
Extended drain (Euro IV to VI)* |
Mack |
EO-O Premium Plus, EO-N, EO-M Plus, EO-M |
MAN |
M3775 |
Mercedes-Benz |
DTFR 15C100 (previously known as MB 228.31) |
MTU |
Oil Category 2.1 |
Renault Trucks |
RLD-2 |
Volvo |
VDS-4, VDS-3 |
* Can be used in Euro IV and Euro V MX engines and in Euro VI MX & PX engines for DAF
Suitable for use in tractors and other agricultural machinery from the following manufacturers, which require an engine oil meeting the specifications listed above:
- Case New-Holland
- CLAAS
- Fendt
- Massey–Ferguson
- McCormick
- SAME
- Valtra
Always confirm that the product selected is consistent with the original equipment manufacturer’s recommendation for the equipment operating conditions and customer’s maintenance practices