CD Grade is a monograde diesel engine oil based on mineral base oil, formulated with a high alkaline reserve (TBN). Available grades: CD 40, CD 50. API lists CD as obsolete: it is not suitable for most diesel automotive engines built after 1994.
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Grades & published data
Typical values from the product data sheet, each with its test method.
Overview
CD Grade is a monograde diesel engine oil based on mineral base oil, formulated with a high alkaline reserve (TBN). Available grades: CD 40, CD 50. API lists CD as obsolete: it is not suitable for most diesel automotive engines built after 1994.
Each grade is listed separately in the specification table with its viscosity at 100 °C, viscosity index, flash point, pour point, density and base number, so grades can be compared directly before ordering.
Application
Diesel machinery in road construction, as named in the product's source documentation.
Application
Non-supercharged diesel vehicles in normal working conditions whose manuals specify API CD.
Feature
CD 40: KV100 15.5 cSt, VI 100, TBN 10, pour point -15 °C; CD 50: KV100 19 cSt, VI 100, TBN 10, pour point -12 °C.
Feature
The catalogue positions this oil around its alkalinity; each grade publishes a TBN of 10 mg KOH/g.
Feature
2 grades in one product line, so a fleet can standardise on one API level across different climates or engine requirements.
Use the SAE grade in the engine manual for your ambient temperature range. Multigrade oils (such as 15W40) cover a wider temperature range than monograde oils (such as SAE 40 or 50).
Next step
The range above is what we publish. Formulation to a customer brief is a route of its own, and a sample is the first stage of it.
