DEUTZ Quality Class
Approval system for oil and coolant
Oil
The introduction of the new ACEA and API oil specifications, as well as the requirements for longer oil change intervals, reduced oil refill quantities and the inclusion of alternative fuels in the DEUTZ engine portfolio means that the current oil release classes must be updated.
| Quality Class | Oil type |
|---|---|
| DQC I-02 | Minimum oil quality, some shorter oil change intervals |
| DQC II-18 | Engine oil, usually used in engines with open crankcase ventilation |
| DQC III-18 | Standard quality, high performance diesel engine oils, for use in engines with closed crankcase ventilation and/or with high thermal loads |
| DQC IV-18 | Ultra high performance diesel engine oils for engines with the highest levels of output, with closed crankcase ventilation and/or with the highest thermal loads and the highest requirements for piston cleanliness (suitable for TTCD steel piston engines) |
| DQC II-18 LA | Low-ash engine oil, usually used in engines with open crankcase ventilation |
| DQC III-18 LA | Low-ash high performance diesel engine oil, standard quality, for use in engines with closed crankcase ventilation and/or with high thermal loads |
| DQC IV-18 LA | Low-ash ultra high performance diesel and gas engine oil for engines with the highest levels of output, with closed crankcase ventilation and/or with the highest thermal loads and very high requirements for piston cleanliness (suitable for TTCD steel piston engines) and extended oil change intervals |
Applications for DQC Releases
The links on this page provide the lube oil producers with the opportunity to download the DEUTZ AG company standard for DQC releases together with the appendices (limit values and application forms). In the company standard, the formalities of the release procedure are also described.
Documents Release System Oil
Coolant
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
| Approval designation | Cooling system protective agent type |
|---|---|
| DQC CA-14 | Cooling system protective agents, contains silicate, based on monoethylene glycol (MEG) |
| DQC CB-14 | Cooling system protective agents, does not contain silicates, based on organic acid (OAT) and monoethylene glycol (MEG) |
| DQC CC-14 | 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.
Please Note
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.
Documents Release System Coolant