Can you trust fuel economy figures?

There are often gaps between the represented mileage and real-world fuel consumption

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From the November 2015 issue of the magazine.

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“We bought a new Mazda 2 in 2013, to replace a Toyota Yaris. The fuel economy falls way below the advertised factory figures. Is there anything we can do?”

M. Williams, Ste-Anne-de-Bellevue, QC

In 2015, Natural Resources Canada introduced more realistic laboratory procedures for calculating the fuel consumption figures provided by the automakers. However, the Automobile Protection Association sometimes still observes gaps between the represented mileage and real-world fuel consumption. Automakers and dealers like the government lab test because it helps sell new vehicles (the promise of fuel savings can encourage a consumer to change vehicles). A better solution would be to calculate fuel consumption on the road, with some form of guarantee that you can match it—within 5% for example—or be eligible for a rebate from the automaker.

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