Opel outlines steps in engineering initiative for WLTP-based fuel consumption numbers and improved NOx reduction
29 March 2016
Opel has outlined the details of its engineering initiative with respect to fuel consumption numbers and improved NOx reductions as announced last December. (Earlier post.)
Starting with the new Opel Astra from June 2016 onwards, and in addition to the official fuel consumption and CO2 information, Opel will publish fuel consumption numbers reflecting different driving behavior recorded under the WLTP test cycle. In addition, Opel will implement an initiative to improve NOx emissions on SCR (Selective Catalytic Reduction) diesel applications in new vehicles from August onwards.
This is a voluntary and early intermediate step towards the RDE (Real Driving Emissions) legislation that goes into effect in September 2017. Opel is offering to provide the regulatory authorities with the engine calibration strategies, which should serve as the basis for a proactive dialogue.
We at Opel strongly believe that the industry has to regain trust by increasing the transparency with customers and authorities. Opel takes this step towards RDE to show it can be done. We announced in December in which direction we are going; now we are delivering the details. I ask the European Union as well as the EU member states and other European countries to accelerate alignment on test set-ups and test interpretations on real-driving-measurements to stop the existing uncertainty caused by test results that are hardly comparable.
—Opel Group CEO Dr. Karl-Thomas Neumann
Opel steps towards WLTP Test Cycle. In addition to the official fuel consumption and CO2 information of its models, Opel will publish fuel consumption numbers recorded under the WLTP test cycle will be published, starting with the new Opel Astra. These figures, which will show a fuel consumption range with a low and a high number, will first be offered for the model year 2016 Astra and published on a dedicated Opel micro-website, creating more transparency. Figures determined under the WLTP test cycle will be published for further models later this year.
According to EU plans, the “New European Driving Cycle” (NEDC) will be replaced starting in 2017 with the more modern standard “Worldwide Harmonized Light Duty Vehicles Test Procedure” (WLTP). The WLTP is important to maintain standardized, reproducible and comparable results.
Opel moves towards RDE. Opel is also taking action related to NOx emissions to improve Euro 6 diesel SCR engines in the direction of future RDE. RDE is the real driving emissions standard which supplements current test methods and measures a car’s emissions directly on the road.
I strongly believe that diesel technology will only continue to play a major role in Europe if the industry sticks to the path of continuous improvement. That is one of the reasons why we decided to implement SCR-Technology to the entire diesel fleet starting as of 2018. With this we do not only talk about a strategy of regaining trust, we also talk about a strategy to preserve the advantage of Europe’s automotive industry in diesel technology.
—Dr. Neumann
The start of the implementation for this Euro 6 SCR improvement in new vehicles is currently scheduled for August 2016. In addition, this activity also includes a voluntary customer satisfaction field action that will involve 57,000 Euro 6 SCR vehicles that are already on the road in Europe (Zafira Tourer, Insignia and Cascada). This activity will start in June 2016.
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