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Base Stock Letter of Conformance Signatories

Last updated: 7 November 2017

Signing the Base Stock Manufacturer’s Letter of Conformance (LoC) implies a commitment by base stock manufacturers and partner groups to the quality assurance guidelines described in Appendix B of the ATIEL Code of Practice for the manufacture of base stocks to be used in engine lubricants for which compliance with ACEA Oil Sequences is to be claimed.  The ATIEL Code of Practice forms part of the European Engine Lubricant Quality Management System (EELQMS).

Administration of the LoC scheme is now carried out  by SAIL, Services to Associations and Industry in the Lubricants Sector, on behalf of ATIEL.  The new list of signatories for the validation period starting 1 November 2017 can be found on the SAIL website here.

The appearance of an entity on this list only means that ATIEL has entered in its register, as of the date of the list, a valid Letter of Conformance of the entity concerned, appearing, on the face of it, to be genuine. ATIEL assumes no responsibility for the implementation by the entities identified above of their obligations, as defined in such Letter of Conformance, or for any damage that a breach thereof may cause to third parties. ATIEL cannot be held responsible for any claims resulting from inclusion and non-inclusion of entities in this list. ATIEL also declines any responsibility with regard to the external audit procedure, which belongs to the domain of the relevant auditor.

Any queries concerning this list should be addressed to the SAIL administrator (This email address is being protected from spambots. You need JavaScript enabled to view it. - tel:+32 479 631 039). 

ACEA 2016 Oil Sequences

Download the latest version of the ACEA Oil Sequences here.

This new update provides:
- A new revision of the ACEA sequences with the introduction of the new CEC L-107-19 test and limits (A/B and C categories) that replaces the Daimler M271 test and limits.
- An update to the ASTM D892 method (used to quantify the foaming tendency of engine oil) in respect of the applicability of test Option A (with or without the Option A sample pre-test procedure is permitted)