Competition running in oil for test bed running up to 4 hours. Advanced formulation of high quality solvent refined mineral oils fortified with special low volatility components and appropriate additive treatment.

A 10W40 viscosity grade mineral oil which has been carefully formulated to offer an extremely high protection level to new engine components and speed up the bedding in process. Ideally suited for test bed running.

Use as received for test bed running.
May also be used for light operational duties up to 500 miles / 800 km.
Developed for modified petrol and diesel engines.

Millers Oils CRO 10w-40 Engine Oil is also known as:

• Millers Oil CRO 10w-40 Engine Oil 
• Millers Oil CRO 10w40 Engine Oil 
• Millers Running in oil 
• Millers Competition Running in oil