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PSA first to publish real-world fuel figures
Exhaustive testing: Part of PSA Peugeot Citroen’s real-world fuel consumption study involved the installation of portable emissions measurement systems on test vehicles.
Good initial results from PSA Peugeot Citroen’s real-world fuel consumption tests
4 March 2016
FRENCH car conglomerate PSA Peugeot Citroen has become the first automotive
manufacturer to publish real-world fuel consumption data for its products as
the European Union gears up to introduce a Real Driving Emissions (RDE) test
cycle as a more accurate replacement for laboratory based testing.
During this week’s Geneva motor show, PSA revealed real-world results for three
of its most popular models – which were on average 44 per cent higher than
official figures based on the New European Driving Cycle – and announced plans
to release figures for a total of 30 vehicles by mid-year.
In conjunction with non-governmental organisations (NGOs) Transport &
Environment and France Nature Environment, PSA developed a test protocol based
on EU RDE measurement methods and encompassing real-life driving conditions
such as passenger and luggage loads and air-conditioning use.
A public road circuit near Paris was used, comprising 25.5 kilometres of urban,
39.7km of extra-urban and 31.1km of motorway driving, while independent auditor
Bureau Veritas was engaged to ensure testing was conducted in line with
protocol specifications and that the results were accurate.
By comparing the results with vehicle owners’ fuel usage measurements obtained
through independent customer surveys, PSA confirmed the accuracy of these tests.
Testing on a Peugeot 308 Allure 1.6-litre diesel with idle-stop and six-speed
manual transmission resulted in 5.0 litres per 100 kilometres, while the
customer survey average was between 5.0L/100km and 5.1L/100km.
A Citroen C4 Grand Picasso Exclusive with the same drivetrain achieved
5.6L/100km under the protocol compared with between 5.5 and 5.7L/100km in
The biggest variance was a DS3 So Chic with the same drivetrain as the other
two vehicles, which recorded 4.9L/100km in testing while customers recorded
between 5.1 and 5.3L/100km.
PSA says the initial results show the protocol developed is “scientifically
robust and representative of a typical driver”.
GoAuto compared these results with lab-based NEDC combined cycle data, which
rates the 308 variant tested at just 3.2L/100km, the C4 Grand Picasso at
4.0L/100km and the DS3 at 3.6L/100km.
It translates to the real-world thirst of models tested being respectively 56
per cent, 40 per cent and 36 per cent higher than official – but seemingly
misleading – NEDC figures.
As Volkswagen Group and a number of other carmakers face scrutiny over the
emissions of vehicles they produce in the wake of the ‘dieselgate’ scandal, the
decision by PSA to make public its real-world test results serves to give its
brands a sheen of transparency.
Bureau Veritas executive vice president of marketing, sales and communication
Marc Boissonnet described PSA’s collaboration with NGOs and an independent
certification organisation in developing an conducting the tests as “both
innovative and constructive”.
“It meets all the conditions for addressing issues that may be raised by
consumers. PSA Peugeot Citroen has done what was necessary to ensure an
independent and credible verification that can set the standard for the
automotive industry,” he said.
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