DEUTZ Quality Class
The benchmark of quality.
DEUTZ approval system for cooling system protective agents
With the implementation of an approval system for cooling system protective agents, the DEUTZ AG will expand the DQC oil approval system, which is already well-established with lubricant manufacturers and customers alike, to this product field. For this reason, the DEUTZ in-house standard H 0685-6 was introduced and contains the approval requirements and instructions for completing the approval procedure.
Approval designations for cooling system protective agents
|Cooling system protective agent type
|Cooling system protective agents, contains silicate, based on monoethylene glycol (MEG)
|Cooling system protective agents, does not contain silicates, based on organic acid (OAT) and monoethylene glycol (MEG)
|Cooling system protective agents, contains silicate, based on organic acids and monoethylene glycol (MEG)
Only cooling system protective agents approved in writing by DEUTZ may be designated by the coolant manufactures in data sheets or other publications using the approval designations DQC CA-14, DQC CB-14 or DQC CC-14.
DEUTZ is the sole owner of the trademark DQC that is protected for all countries of the European Union Office for Harmonization in the Internal Market at the official file number 012454112. Furthermore, trademarks are protected in the USA, Canada and in China. All rights and claims in respect of the brand remain with DEUTZ DQC.
If you have questions regarding our cooling system protective agent approval system, contact us at: firstname.lastname@example.org
You can find additional information and the monthly, updated approval list available for download here: