SINOPEC in the UK

Supplying lubricants and oils across the UK

15W40 E9

15W40 E9 CK-4 diesel engine oil is a low SAPS heavy duty lubricant for modern diesel engines with EGR, SCR, and DPF where ACEA E9 and API CK-4 are specified.

Available Packaging

18L Pail, 200L Drum, 1000L IBC.

Key Features

  • ACEA E9 and API CK-4 performance for engines with after treatment
  • Wear protection and piston cleanliness
  • Oxidation resistance to help maintain viscosity in service
  • Soot handling and dispersancy
  • Cold start pumpability for a 15W grade

Applications

Use where the handbook calls for SAE 15W-40 with ACEA E9 or API CK-4. Suits on highway and off highway engines with or without DPF, SCR, and EGR.

On highway

  • Long haul and regional trucks
  • Urban buses and coaches
  • Light commercial vehicles where 15W-40 E9 CK-4 is specified

Agriculture and forestry

  • Tractors and telehandlers
  • Harvesters and sprayers
  • Skidders and chippers

Off highway construction

  • Excavators, wheel loaders, and dump trucks
  • Bulldozers, graders, and compactors
  • Site generators and compressors

Power generation and mixed fleet

  • Stationary diesel engines and gensets
  • Fleets requiring ACEA E9 or API CK-4 across engine families
  • Where low SAPS oil is required to protect DPF

Always follow the manufacturer’s recommendation for viscosity, performance level, and drain interval.

Specifications

  • SAE grade: 15W-40
  • Kinematic viscosity, ASTM D 445: cSt at 100 °C: ~15.2
  • CCS, cP at −20 °C, ASTM D 5293: ~6100
  • MRV, cP at −25 °C, ASTM D 4684: ~24,000
  • High temperature high shear viscosity HTHS, ASTM D 4683: cP at 150 °C: ~4.1
  • Total base number, mg KOH per g, ASTM D 2896: 9.9
  • Pour point, °C, ASTM D 97: −36
  • Flash point COC, °C, ASTM D 92: 230
  • Meets or exceeds: ACEA E9, API CK-4 or CJ-4 diesel, API SN petrol
  • OEM approvals and performance claims: Mack EO-S 4.5, Volvo VDS-4.5, VDS-4, VDS-3, Cummins CES 20086 and 20081, Caterpillar ECF-3 and ECF-2, Detroit Diesel DFS 93K222 and 93K218, Mercedes Benz MB 228.31, MAN M3575 and M3775, MTU Category 2.1, Renault VI RLD-3, Deutz DQC-III-10LA

Compare Grades

If you need a lower viscosity alternative, see 10W-30 CK-4: 18 L pail | 200 L drum | 1000 L IBC.

Cross References

Common equivalents for 15W-40 ACEA E9 and API CK-4. Confirm suitability with the manual and data sheet.

  • Shell Rimula R4 L or later CK-4 low SAPS variant
  • Mobil Delvac Modern CK-4 15W-40
  • Castrol Vecton 15W-40 CK-4 E9
  • BP Vanellus 15W-40 E9 CK-4
  • Total Rubia Optima 1100 15W-40
  • Fuchs Titan Cargo 15W-40 E9
  • Petro Canada Duron Advanced 15W-40
  • Morris Versimax 15W-40 CK-4
  • Q8 T 750 15W-40 E9
  • Gulf Superfleet LE 15W-40
  • Valvoline All Fleet CK-4 15W-40
  • Chevron Delo 400 15W-40 CK-4

Buy 15W40 E9 CK-4 Diesel Engine Oil

Pail 18 L | Drum 200 L | IBC 1000 L

Save 5% on full pallet or bulk orders. Discount applies automatically on qualifying quantities at checkout.

FAQ

What do ACEA E9 and API CK-4 mean

They are heavy duty diesel oil categories. E9 and CK-4 use low SAPS chemistry that supports engines with after treatment when specified by the maker.

Is 15W-40 E9 CK-4 suitable for DPF systems

Yes, when the handbook calls for E9 or CK-4.

Can I mix with other grades

Top up with the same grade and level where possible. Return to the specified oil at the next service.

Last reviewed: 1 April 2026
Prepared by the Sinopec Online Technical Team.

Reach out to us