Germany’s vehicle testing organisation, the TÜV, has raised concerns about increasing the rate of compulsory blending of biodiesel into ordinary diesel as planned from early next year.
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It says that moving from B5 diesel (with 5% biofuel) to B7 (with 7% biofuel), could cause damage to engines.
The German government has had to abandon plans to increase biofuel blending in gasoline to 10%, up from 5% now, in response to pressure from motoring organisations, which said that the fuel was more corrosive than ordinary petrol and could wear out engine parts more quickly.
According to the German press agency, dpa, the ‘bio-task-force’ of the German standards agency Deutsche Institut für Normung (DIN), has also raised concerns about B7 from January 2009. Germany’s environment minister, Sigmar Gabriel, is also reportedly familiar with the problem.
Germany’s environment ministry told the Bild am Sonntag newspaper that problems associated with B7 can be dealt with by setting standards for the fuel. It added there are still some technical details to be sorted out.
