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An introduction to the MultiJet engine and its environmental impact

Fiat’s MultiJet technology has propelled it to the forefront of commercial motoring fora  number of reasons, not least its impressive performance with small engine sizes and its world-renowned reliability. But that’s not the end of it. It’s also one of the greenest diesel engines on the market, and that’s all down to the way in which it works.

MultiJet technology

The current MultiJet II engine precisely controls the amount of fuel injected into the cylinder with a quicker injection sequence rather than a single injector which could push too much fuel into the cylinder, causing environmental damage; or too little, causing engine strain. As a result, diesel combustion is optimised and emissions are reduced enormously. The environmental impact is clear, but it also has the added benefits of improving engine performance and fuel consumption, making for a happy motorist too.

MultiJet II engine

It would be fair to say that almost all engines are getting greener, but the MultiJet was one of the first naturally green engines, being fitted to most of Fiat’s commercial vans such as the Scudo and even home vehicles such as the Fiat Scudo Conversion. On a standard cycle, for example, the Common Rail injection system reduces CO2 by around 2% on a standard cycle and NOx by up to 30%. Due to Fiat’s reputation for harnessing more power from smaller engines, this isn’t at the expense of performance, either.

Doblo cargo van

Even the 2.0 litre MultiJet engine on the Doblo cargo van will use just 5.7 litres of fuel over 62 miles and emit just 150g/km on a combined cycle. In a world where haulage and logistics are becoming ever more important, developing greener diesel engines is becoming a market all of its own and manufacturers such as Fiat are at the forefront of this technological innovation. To have a commercial vehicle which is not only environmentally friendly but also saves you money in fuel and road tax whilst not compromising on performance is the holy grail of motoring.

Improvements in environmental motoring are certainly set to continue in the coming months and years, with greener engines and injection technology helping us to look after the world in which we live and our own pockets at the same time, which can only be a good thing.



Celia Smith loves to write about fashion, design and autos and has done so for a number of years and drives a Volkswagen Beetle.


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