C O G E N T L U B R I C A N T S

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Cogent Lubricants was founded in 2021 and has established itself as a leading lubricant and grease manufacturer in more than 50 countries across the globe.

COGENT ACTIVE SUPREME 10W-40 CK-4/SN SERIES

COGENT ACTIVE SUPREME 10W-40 Fully Synthetic Diesel Engine Oil | API CK-4/SN

Product Description :

COGENT ACTIVE SUPREME 10W-40 CK-4/SN SERIES is an advanced performance, low-SAPS fully synthetic diesel engine oil formulated with severely refined base stocks and sophisticated technology additives to provide outstanding engine performance. As a top-tier product developed by a premier engine oil manufacturer, this high performance engine oil formulation is custom-engineered to meet the strict demands of the latest low-emission designs. It provides full engineering compatibility for vehicles integrated with advanced exhaust after-treatment systems, including Diesel Particulate Filters (DPF), Selective Catalytic Reduction (SCR), and Diesel Oxidation Catalysts (DOC).

This versatile motor oil offers excellent backward compatibility down to API CJ-4 specifications, making it an ideal choice for both new and old diesel engines operating across heavy-duty On and Off-highway applications. Furthermore, it satisfies the requirements of gasoline engines demanding premium API SN performance. This premium automotive engine oil is specifically structured by a trusted lubricant manufacturer to supply excellent wear and engine protection, outstanding high-temperature performance, reliable engine cleanliness, and extended drain capabilities with excellent TBN retention, standing as a premium choice among global automotive lubricants.

Features & Benefits :

• Excellent oil consumption control, due to very oil low volatility and less oil top-up during operation.

• Outstanding oxidation & thermal stability reduces sludge deposits and keeps the engine cleaner.

• Excellent engine protection by providing outstanding protection against corrosive & abrasive wear.

• Improved shear stability maintains viscosity in-grade under severe, high temperature service conditions.

• Excellent low temperature pumpability ensures smooth cold starting and improved fuel economy.

• Excellent TBN reserves provide improved acid neutralization and corrosion protection, which helps in extending oil drain interval in both new & old engines using either low (500 ppm) or ultra-low (15 ppm) sulfur diesel fuel

Specifications :

COGENT ACTIVE SUPREME 10W-40 CK-4/SN SERIES meets or exceeds the following international and OEM specifications:

• API CK-4, CJ-4, CI-4 Plus, CI-4, CH-4, CF, CF-2, SN, SM, SL                             • CAT ECF-3 

• ACEA E9/E7-16                                                                                                      • MB 228.31 

• MTU OIL Category 2.1                                                                                          • VOLVO VDS-4.5 

• MACK EOS-4.5 / FORD WSS-M2C171-F1                                                         • MAN 3275 / 3575 

• Detroit Diesel Power Guard 93K222                                                                  • Renault VI RRLD-4 

• CUMMINS CES 20086                                                                                          • Deutz DQC III-10 LA / JASO DH-2

Typical Characteristics :

COGENT CK-4/SN

Test Method

Units

Typical Value 

10W-30

Typical Value 10W-40

Density @ 15°C

ASTM D 4052

gm/cc

0.865

0.870

Viscosity @ 100°C

ASTM D 445

cSt

10.4

14.4

Viscosity @ 40°C

ASTM D 445

cSt

62.6

96

Viscosity Index

ASTM D 2270

155

155

Pour Point

ASTM D 97

°C

-39

-39

Flash Point (COC)

ASTM D 92

°C

215

225

Total Base Number

ASTM D 2896

mg KOH/g

9.6

9.6

Sulfated Ash

ASTM D 874

% wt

0.9

0.9

CCS Viscosity

ASTM D 5293

cP

6050 @ -25°C

6200 @ -25°C

Note: The above figures are typical of blends with normal production tolerance and do not constitute a specification