CASTrol Edge 0W-40 A3/B4

EDGE 0W-40 A3/B4

An advanced full synthetic engine oil formulated for prestige and high performance engines in both petrol and diesel passenger* and light commercial vehicles, naturally aspirated or turbocharged.

Castrol EDGE 0W-40 A3/B4 gives you the confidence to demand maximum engine performance from today’s prestige and high performance vehicles requiring lower viscosity higher performance oils. Castrol EDGE 0W-40 A3/B4 is proven in tests to deliver outstanding oil strength.

The exceptional characteristics of Castrol EDGE 0W-40 A3/B4 ensure that all engine components, from the valve train to the bearings are fully lubricated to provide optimum engine performance and protection.

* Excludes diesel passenger vehicles fitted with Diesel Particulate Filters (DPF).

Castrol EDGE is tested to its limits. Learn why engine oil needs to be strong.


Castrol EDGE 0W-40 A3/B4 provides outstanding wear protection in performance engines designed to run at their optimum level on lower viscosity oils. Use in engines where maximum efficiency and protection is demanded.

Features & Benefits

Castrol EDGE 0W-40 A3/B4 contains TITANIUM Fluid Strength Technology™ which:

  • Delivers excellent levels of protection across a variety of driving conditions and temperatures.
  • Helps engines run cooler, contributing to longer engine life and reduces engine deposits to help maximise engine response.
  • Is extreme tested to deliver maximum horsepower up to 40% longer than other synthetic oils.
  • Superior thermal stability ensures minimal breakdown in formulation and minimal engine deposits for cleaner engine internals and ultimate engine protection.
  • Engineered to minimise oil consumption, ensuring the maximum potential is available from the oil throughout the service interval.
  • Excellent light duty diesel engine performance; suits modern direct injection engines without DPF.

Castrol EDGE 0W-40 A3/B4 exceeds many current lubricant performance standards and exceeds the most demanding European, American and Japanese service requirements. Castrol EDGE 0W-40 A3/B4 is approved by the majority of motor manufacturers that have systematic testing and approval regimes.


Industry Specifications:

  • ACEA A3/B4

Manufacturer Approvals:

  • BMW Longlife – 01
  • VW 502 00/ 505 00
  • MB-Approval 229.3/ 229.5
  • Porsche A40

Where to buy? 

Product Data Sheet 

Material Safety Data Sheet