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CRB Monograde 40 CF

Castrol CRB Monograde 40 CF is a diesel engine oil designed for use in heavy duty diesel engines, hydraulic systems and transmissions that specify the use of monograde diesel engine oil.

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During its working life, your engine faces challenges from combustion by-products that can form deposits, and thicken the oil. Castrol CRB Monograde 40 CF helps combat these issues in two ways:

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

Castrol CRB Monograde 40 CF helps provide protection across multiple applications to encourage long and healthy engine life.

Typical Characteristics

NameMethodUnitsCRB Monograde 40 CF
Density @ 15CASTM D4052g/ml0.890
Viscosity, Kinematic 100CASTM D445mm2/s13.7
Viscosity, Kinematic 40CASTM D445mm2/s132
Viscosity IndexASTM D2270None99
Ash, SulphatedASTM D874% wt1.3
Total Base Number, TBNASTM D2896mg KOH/g9.3
Pour PointASTM D97°C-36
Flash Point, PMCCASTM D93°C215

Product Performance Claims



All packages should be stored under cover. Where outside storage is unavoidable drums should be laid horizontally to avoid the possible ingress of water and damage to drum markings. Products should not be stored above 60°C, exposed to hot sun or freezing conditions.

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