Castrol EDGE 25W-50

EDGE 25W-50

Castrol EDGE 25W-50 iengine oil is specially formulated for big bore street machines, naturally aspirated, supercharged or turbocharged.

It is a race bred oil that is the ultimate product for modified engines, push-rod technology, street machines and big bore competition engines. Castrol EDGE 25W-50 has demonstrated superior protection in certain highly loaded valve-train components and delivers the best cam-wear protection for radical cam profiles.

Learn why your engine oil needs to be strong.



Castrol EDGE 25W-50:

  • provides outstanding wear protection in big bore street machines and competition engines designed to run at their optimum level on higher viscosity mineral oils.
  • suitable for use in automotive gasoline engines where the manufacturer recommends an SAE 25W-50, API SG/CD or earlier specification 25W-50 lubricant. 
  • Large in-board power and ski boats & is suitable for use in veteran motorcycles and motor cars where high viscosity oils are specified or required


Castrol EDGE 25W-50 contains unique TITANIUM Fluid Strength Technology™ to:

  • Maximises short and long term performance in modified engines including street machine and big bore competition engines
  • Reduces engine deposits to help maximise engine response
  • Provides race winning protection, tough enough to handle a hard driving style


Industry Specifications:


Where to buy? 

Product Data Sheet 

Material Safety Data Sheet