CEC - The Coordinating Euroopean Council for the development of performance tests for fuels, lubricants and other fluids
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CEC Newsletter - April 2018
In this edition, we will cover feedback of the latest Management Board meeting as well as some news on the test method side.

TDG-F-113 – DISI test

The test is installed and running at ISP. The initial validation runs are complete. The draft test method for Keep-Clean test has been issued and the tender fuels from Coryton Advanced Fuels (CAF) are under evaluation.

The TDG is currently facing two challenges regarding the reference fuel and the engine supply which is causing a potential delay of some months.

The tested EN 228 candidates fuel from CAF could not match the Dirty-up fouling value target so far.

There are technical indications, that there might be a difference in fouling performance between an EU4 and an EU5 engine. Therefore a small Round Robin (RR) test using the same fuel but having EU4 and EU5 engines will be performed.

It was agreed in the conference call on 5th of March that CAF would prepare and supply a new EN228/E0 candidate. The fuel will then be sent to ISP and two other labs for comparative evaluation. ISP and another lab will use EU4 engines, whereas the third lab will use an EU5 engine.

The results should be ready for the next TDG meeting on 11th April and will be discussed then. The current situation has raised some potential risks related to the test method development and the reference fuel sourcing.

TDG-L-107 – M271 Sludge Test

The low calibration oil test results gave good results. Everything went well until the high calibration oils were run. The test was aborted at 240 hours and the proposed 280 hours would not have been reached. This point lies at the same hour for the low calibration which is a big concern. The oil was analyzed but no problems were found. The oil pump was checked as well as the fuel dilution and was also good so from the test method side everything is consistent.

Several scenarios were proposed and discussed in the TDG meeting on October 18th and the TDG agreed to use the remaining funds to evaluate the oil consumption at each test condition in order to understand the outcome structure around the test point that they got in the current procedure.

 Two tests (one on sludge fuel and one on normal diesel fuel) were run and showed differences in the oil consumption, but both indicated exactly how the test procedure could be modified to reduce oil consumption. The next step is to agree on these changes. A meeting has been arranged for 10th April to finalise and discuss the fuel specification.

According to the current timeline, phase 1 should be finalized by August 2018 and Phase 2 by November 2018.  Therefore, the test should be available as of December 2018.

TDG-T-108 - Pitting test

Candidate oil A has been selected as low reference oil and the results look very promising with all runs failing due to typical pitting and low micro-pitting. One lab showed high runtime with micro-pitting and is doing internal verification. The RR with high reference candidate oil has started and data from 5 labs is available, showing also good results, with the exception of one lab that showed significant lower running time. Internal verification is done here as well.

 In October the group held their meeting where the results were discussed. Results show discrimination between low and high candidate oils in running time until pitting failure. For high reference oil a minimum running time may be specified to allow a clear differentiation with the low reference. oil. Preparation started by SDG Officer on low reference oil to establish precision data and limits. All the open issues of the draft test method should be addressed and finalized at the next group meeting early April 2018.

TDG-L-114 - Toyota Diesel Turbocharger Compressor Deposit test proposal 

A kick-off meeting took place on November 24th. So far only 2 labs are willing to run the test. On the engine test kit delivery, Toyota will start delivering from April onwards.The Fuel tender was launched and 3 potential suppliers submitted an offer. A fuel tender committee has been setup to review the offers.

SPG on Low Soot Wear Test 

The SPG concluded that a TDG should be formed to develop two low soot wear tests; a Journal Bearing Wear Test and a Ring / Liner Wear Test. The Terms of Reference (ToR) and templates for both tests have been approved. The request for sponsors has been launched and the first meeting will be setup shortly. 

SPG on Corrosion 

The SPG has been formed with representatives from ATIEL, ATC and ACEA. To be more efficient the group decided to split into subgroups to tackle specific areas or tasks (described in the ToR). Each subgroup has at least one participant from one of the three organizations. They can ask for more experts when it is needed.

The TDG Terms of Reference are expected to be ready by Q1 2019. 


The test will run out of hardware in 2021. A discussion is currently taking place with the SG Chair on the development of a phase-out process for Surveillance Groups which will be integrated in the CEC guidelines.


A group meeting was held on 8th of November 2017 to clarify the fuel blending procedure. Recent reference results have been more variable than expected and are in some cases in excess of the control limits. Data appears to show that the fuel blending procedure has an impact on the test severity.

Based on the recent Low Reference Fuel results obtained from several labs, it has been agreed that the current test variability with Low Reference Fuel is not acceptable by the SG F-110. Although the test still shows a difference in rating between Non IDID Pure base fuel and IDID Contaminated Low Reference Fuel, the test variability needs to be significantly improved to return to the original RR Outcome. Therefore, the next RR, now planned for completion by end Q1 2018, will include a specific and tighter fuel preparation protocol to minimize as much as possible the Low Reference Fuel related variability.

TMS was not used until now but the test labs running this test and contributing to the RR have agreed to upload the data from this RR. The RR outcome will then be reviewed by SDG and statistical criteria will be updated to confirm – or not – the variability issue of the DW10C Test.If at the end of this RR the test doesn’t not show that it is repeatable, the group will declare the test out of control.

In the Terms of Reference for this test method, the TDG was required to work on two main types of IDID, (i) lacquer or amide type deposits and (ii) carboxylate salt deposits. The method passed to SG status based on the availability of a deposit forming reference fuel developing carboxylate salt deposits. Currently there is no deposit forming reference fuel available that develops lacquer or amide type deposits. Once the test is back into control the SG will be asked to restart the work on lacquer or amide type deposits.


Reference oil RL223 is possibly exhausted although according to the stockist there should still be enough product to reach mid/end 2018.

The Chairman will investigate this further and ask all labs how much of this oil they have on stock as this will help to determine how many reference tests can still be run and when the labs will actually run out. The group will need to propose a new reference oil and then it can decide which oil is selected as a replacement reference oil.

SG-L-038, L-088, L-093

Surveillance Groups SG-L-038, L-088, L-093 (TU3, TU5 and DV4) have been closed as the spare parts are no longer available and are no longer used in ACEA 2016. There is no specification in the market place to have those tests and therefore these SG’s have been closed. 

Overview of the CEC Management Board Meeting on March 13th 2018

The latest CEC MB meeting took place on March 13th at the CEC offices in Brussels. The following items were decided/discussed:

Annual Accounts and Audit report

The 2017 CEC Annual Accounts and Audit report have been approved and accepted by all member associations.

CEC Workshop

Following the first CEC workshop which was held in 2016, we are pleased to announce that the next edition will take place on Wednesday, November 28th, 2018 in Brussels. The CEC Management Board and the secretariat are working on the programme and an invitation with more details will be distributed shortly. 

TDG Execution and Support Processes

At the CEC workshop in November 2016 the proposals were shared with the TDG’s to enhance and improve the CEC Test Development Process. Based on the discussions during the workshop the CEC Management Board developed additional enhancements of this important initiative.

A high level summary of the drivers and the proposed enhancements were shared with the TDG’s as well as a questionnaire. An online Q&A session will be organized soon and a face to face session will be held during the next CEC workshop in November. 

Upcoming events 

  • SG-T-045 and SG-T-084 meetings on April 10th, 2018 at FZG Institute in Munich
  • TDG-F-113 meeting on April 11th, 2018 at Lubrizol in Hazelwood
  • SG-F-110 and SG-F-16 meetings on April 12th, 2018 at Lubrizol in Hazelwood
  • CEC Management Board Conference Call on May 8th, 2018
  • CEC SDG meeting on May 15th, 2018, at Fuchs Schmierstoffe GmbH
  • CEC bundled meeting on May 16 & 17th, 2018 at Fuchs Schmierstoffe GmbH
  • CEC Reference Oil Group meeting on May 23rd, 2018 at Haltermann Carless - France
  • CEC Management Board Meeting on June 19th, 2018 at CEC offices in Brussels

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