CK-4 is a new diesel engine oil standard introduced by API. API CK-4 has 3 improvements over CJ-4 lubricants:

  • oxidation performance
  • aeration performance
  • shear stability

  • This translates into a higher performing lubricant capable of withstanding higher temperatures and pressures experienced in modern engines. CK-4 is backward compatible to previous categories API CJ-4, CI-4 Plus and CI-4. Volvo 4.5 has even stricter test limits than API CK-4 and offers improved oxidation performance.

    So, whether it is engine oil, transmission fluid or any special product your equipment and vehicles may need, you can easily find it in our Castrol range.

    Our dedicated nationwide sales team can provide you with up to date technical advice on Castrol products and specifications. Along with keenly-priced products we offer prompt delivery and a committed after sales service.

    Contact us today for a competitive quote and we will have one of our qualified sales team handle your enquiry.

    Walsh Lubricants, Watergrasshill, Co. Cork Tel: 021 4889814, Email: