Suzuki Motor says it has been using improper methods to test the fuel economy of its vehicles, sending its stock down 9.4 per cent as the disclosure triggered concerns more companies could be affected by the scandal that began with Mitsubishi Motors.
Suzuki, Japan’s fourth-largest carmaker, said its testing methods had not complied with domestic standards since 2010, after checking all 16 of the models sold in its home market involving 2.1m vehicles.
But the producer of small cars said it did not see a need to revise its fuel economy figures since the performance of its vehicles did not differ significantly using a proper testing method. It also did not find any manipulation of fuel efficiency data.
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