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Ford Falcon four-cylinder cheaper on standard fuel

The EcoBoost Falcon is the latest in a growing global range of green cars from Ford.

Certification of the new EcoBoost Falcon was done with premium 95-octane unleaded fuel but the car can happily run on a more basic brew. 

Standard 91-octane petrol is fine for the car and will potentially save around $150 a year at the pump, based on Carsguide figures. 

Although it does take the edge off the performance very slightly, the man who led EcoBoost engine development work for the Ford fighter says only a tiny number of people would notice.

"The difference is less than five per cent. It's less than a customer would pick," David Mitchell, who heads powertrain development at Ford Australia, reveals to Carsguide. He also says he would be happy to run an EcoBoost Falcon on standard unleaded.

"I'd stick 91 in it. Every time. I's absolutely engineered for 91," he says. The EcoBoost Falcon is the latest in a growing global range of green cars from Ford that put an efficiency twist on small-capacity turbocharged engines.

BMW and Fiat also have their EfficientDynamics and MultiAir green leaders, but Ford eventually plans to have an EcoBoost engine for every model from the baby Fiesta - which has a 1.0-litre EcoBoost in Europe that's also coming to Australia - through to the hulking F-Series truck, which has a 3.6-litre V6 EcoBoost engine that's the most popular choice today in the USA.

The 2.0-litre EcoBoost engine in the Falcon is already fitted to a wide range of models in Europe - from the Ford Mondeo to the Range Rover Evoque and Volvo XC60 - but there has been extensive local development work including durability testing in the USA.

The final result - using 95-octane unleaded - is 179 kiloWatts of power and 353 Newton-metres of torque, with a combined fuel economy figure of 8.1 litres/100km. Dropping back to 91 unleaded only costs 2.5 kiloWatts and three Newton-metres, although the torque peak of 350 Newton-metres rises from 2000 to 3000 revs.

Mitchell says Ford  was obliged to do its certification work on the EcoBoost Falcon with premium unleaded and all the press, promotional and advertising figures are based on the results. However, he is a strong advocate for 91 unleaded in the car. "You do ge a small benefit in performance with 95, but 91 is still regarded as a cost-effective choice," he says.