The gap between the official data the average fuel consumption and actual performance indicators from 2001 to 2013 increased from 8 to 31 per cent, almost four times. This statistic applies to all car brands and reflects the average figures for the industry. However, the leader in underestimation rate is Mercedes-Benz. This conclusion is contained in the report of the Belgian environmental organization Transport & Environment.
“If your new Mercedes-Benz consumes 40 percent more fuel than is written in the brochure, it is not uneconomical driving style. Rather, the reason is that the German mark at the moment is a master of manipulation test methodology calculates the fuel consumption. Official data obtained in the laboratory may not be reproduced in reality”, – the report says.
Mercedes-Benz was named chief manipulator fuel consumption data
According to the company, in 2013, the gap between the official data of Mercedes-Benz and the actual consumption figures amounted to almost 40 percent. Slightly behind this indicator BMW, Ford, General Motors, Volkswagen, Renault, Fiat, Peugeot Citroen and Toyota. In the case of these companies distortion level data from 32 to 20 per cent (down in the order listed brands).
Why in the list did not include other brands, the researchers did not specify. However, despite the lack of data on other automakers, the authors believe that the wrong fuel consumption figures are publishing company. The same applies to the statistics on emissions.
The report thus emphasized that the car companies do not falsify the data directly. According to scientists, the results are inaccurate due to the test conditions. So, Transport & Environment indicates that during the tests the company may use a variety of tricks that will ensure low levels. For example, use a special lubricant or even reprogram the engine control electronics.
According to researchers, a typical car Mercedes-Benz owner spends on fuel for 500 euros more than the amount which he had to spend at the officially specified fuel consumption. Over the entire life cycle of the car driver overcharged for fuel on average 5000 to 600 euros.