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Delo® 400 SDE

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When durability matters, a single change can change everything

When it comes to your fleet vehicles, you want them to last. New Delo® 400 SDE 15W-40 diesel engine oil helps reduce wear* and deposits* on critical engine parts, with the potential for longer drain intervals** to keep your vehicles on the road.

To get more out of your engine, change your current oil to Delo® 400 SDE 15W-40 today! It’s the durability and reliability you need to take your business further. 

Terms and conditions: *Based on test results vs. API CJ 4 standard for wear and deposits .**Requires a test program, to assess potential to extend drain intervals using Delo 400 SDE 15W-40 across your fleet.


Delo® 400 SDE SAE 15W-40 is a world-class diesel engine oil formulated to:

  • Meet or exceed the latest API CK-4 HDDEO standard
  • Provide outstanding long-drain performance
  • Excellent piston deposit control
  • Very good performance in stop & go, long haul, and high load conditions
  • Provide a single solution for mixed fleets with both new and old vehicles and equipment
  • Provide synthetic challenging performance from a mineral oil


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ISOSYN® Advanced Technology – provides improved benefits


What is ISOSYN® Advanced Technology?

Performance improvement in CK-4 marketed under the general trademark ISOSYN® ADVANCED TECHNOLOGY

ISOSYN® ADVANCED means improved:

  • Oil oxidation control
  • Wear protection
  • Piston deposit control


Delo® 400 SDE SAE 15W-40 with ISOSYN® Advanced technology

Provides improved benefits:

  • Excellent diesel engine component protection
    • extends vehicle life
    • minimises total cost of ownership
  • Improved engine longevity
  • Extended oil drain performance

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