Car manufacturers are still cheating fuel economy tests

Car manufacturers are still cheating fuel economy tests

April 16, 2019

Car manufacturers are still cheating fuel economy tests by up to 12 miles a gallon – despite VW diesel emissions scandal

  • Audit revealed new fuel economy tests are providing more accurate results 
  • It found that vehicles are achieving about three miles a gallon less than claimed 
  • Steve Huntingford, editor of What Car?, said: ‘The gap between official figures and our real-world tests remains, on average, at almost 5 per cent’

Car manufacturers are still exaggerating fuel economy by up to 12 miles a gallon, despite the introduction of tough tests after the diesel emissions cheating scandal.

An audit of popular cars in Britain revealed new official fuel economy tests brought in late last year are providing much more accurate results.

However, it also found the vehicles are achieving about three miles a gallon less than claimed on average, rising to 12 miles in the most extreme case.

Car manufacturers are still exaggerating fuel economy by up to 12 miles a gallon, despite the introduction of tough tests after the diesel emissions cheating scandal

According to tests carried out by What Car?, the Ford Fiesta EcoBoost 140 petrol model has an official economy – based on the new tests – of 48.7mpg. In reality, it managed only 38.3mpg.

The Volvo V60 D4 diesel achieved an official score of 52.3mpg. In reality, it managed 40.1mpg.

Steve Huntingford, editor of What Car?, said: ‘It’s great to see that the new, tougher tests have closed the gap so significantly. 

‘But the gap between official figures and our real-world tests remains, on average, at almost 5 per cent. We will keep testing until the gap is gone.’ 

An audit of popular cars in Britain revealed that vehicles are achieving about three miles a gallon less than claimed on average, rising to 12 miles in the most extreme case

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