Castrol CRB Multi 20W-50 CF-4 is a multi-purpose, heavy duty diesel engine oil. It is suitable for use in naturally aspirated, turbocharged or supercharged diesel engines that use a broad range of fuel qualities.
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ADVANTAGES

During its working life, your engine faces challenges from combustion by-products that can form deposits, and thicken the oil. Castrol CRB Multi 20W-50 CF-4 combats these issues in two ways:

It contains cleaning agents which displace particles that may otherwise build up on your engine surfaces reducing deposits.
It also contains anti-oxidants which disrupt the chemical reactions that can lead to oil thickening.


Castrol CRB Multi 20W-50 CF-4 provides effective piston deposit control and maintains its viscosity to encourage long and healthy engine life.