PSA Group has announced that all of the vehicles it builds now conform with the WLTP testing regulations that give more accurate results on fuel usage and emissions.
That means vehicles made by Citroen, DS, Peugeot and Vauxhall all comply with the Worldwide Harmonized Light Vehicle Test Procedure, which is a lab-based experiment using real-world data to help provide more realistic results.
Each of the four brands have taken steps over the last couple of years to ensure that all of their vehicles are in line with the new rules by fitting technologies such as selective catalytic reduction on diesel models and particulate filters on petrol engines.
The WLTP rulings are an improvement over the New European Driving Cycle (NEDC) tests, which were introduced back in 1973 and following an update in 1992, were performed over a six-mile route at an average speed of 21mph to calculate a vehicle’s fuel consumption.
The new WLTP experiments are done over 12 miles at a higher mean speed of 29mph, making the tests much closer to realistic driving.
Gilles Le Borgne, PSA Group executive vice president for quality and engineering, said: “Our technological choices to treat pollutant emissions, such as SCR for all diesel engines launched in 2013 and more recently the GPF for gasoline engines with direct injection, allow us to offer to our customers, compliant and environmentally friendly vehicles; and to keep our leadership on reducing emissions.”
From September 1, all vehicles must be homologated to comply with the WLTP rules and they work alongside the more stringent Euro 6d-TEMP engine emission standard that come into full effect in September.
