scope:

This standard specifies minimum requirements for type CLP lubricating oils¹⁾.

The use of type CLP lubricating oils is recommended in particular for circulation and splash lubrication in cases where the requirements for the anti-wear protection in the mixed friction zone are higher.

Type CLP lubricating oils can also be used as hydraulic oils and general purpose lubricating oils or engine oils.

The use of type CLP lubricating oils is recommended in cases where high loads necessitate increased antiwear protection in the mixed friction zone for the friction points and/or where surface damage such as scuffing in severe exposure conditions is to be prevented. In respect of the Note to Clause 5 of this standard, type CLP lubricating oils are suitable for many of the applications specified in ISO 6743-6. When using type CLP lubricating oils for machine tools, DIN 8659-2 also needs to be taken into account.

1) The symbols correspond to those specified in DIN 51502, whereby the code letter L in accordance with this standard denotes additives used to improve the corrosion protection and the resistance to ageing, whereas the code letter P denotes additives used to reduce friction and wear in the mixed friction zone and/or to increase the load-carrying capacity. The attribution of the symbols in accordance with DIN 51502 and the classification in accordance with the standard series ISO 6743 are given in the National Foreword of DIN ISO 6743-99. Type CLP lubricating oils do not exactly fit in this ISO classification scheme.