Shell Sirius X 40

Specifications

Brand

Shell

Category

Marine lubricants

Manufacturer code

001A9054

Availability

On order

Manufacturer's description

Super High Performance Diesel Engine Oil. Shell Sirius X is a top quality lubricant, of the Super High Performance Diesel Engine Oil (SHPDO) class. It is designed for the highest output, high-speed diesel engines, burning distillate fuel and is formulated to give better engine protection and longer drain intervals than normal diesel engine oils. Shell Sirius X is especially suitable for the high power/weight units used in fast vessels and compact generator sets.

Applications

• N.B. Not suitable for N. American automotive type engines, for which API CF-4 type oils are required.
• High-speed diesel engines operating on distillate fuels

Performance & benefits

• Outstanding piston cleanlinessFree-running piston rings, even under difficult operational conditions, ensuring maximum reliability.
• Exceptional protection against bore polishingControl of blow-by and oil consumption, preserving engine efficiency. SHPDO type oils are preferred by many engine manufacturers to guard against bore polishing.
• Exceptional engine cleanlinessAbility to retain high levels of soot safely in suspension, even with extended drain intervals.
• Oxidation resistance twice that of conventional oilsAbility to withstand high temperatures for longer, in severe service or with extended drain intervals.
• High reserve alkalinityA TBN-E (total base number) of 17 to neutralise acids and provide corrosion protection until the next drain interval, even with the higher sulphur levels sometimes found in marine distillate fuels.
• MWM Deutz (high output, high speed, e.g. TBD 620)

Standards & approvals

• API CF

  Diesel engine oil, API CF performance level

  API's service category for indirect-injection diesel engines, tolerant of higher-sulphur fuel. An earlier category in the API service classification, written for the engines of its era; it still appears on datasheets alongside the current categories.Source

Approved for

• Caterpillar
• Cummins
• Deutz

Typical characteristics

Complete documentation

We email you the sheets listed below in a single archive. No account, no order required.

• TDSENFebruary 2026
• SDSENAugust 2026
• SDSROAugust 2026