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Mitsubishi Car Emissions

How do car emissions impact on the environment?

Our cars are the most obvious way we consider our impact on the environment so it’s no surprise that what we choose to drive is important.

Both petrol and diesel cars emit carbon dioxide (CO2), the main greenhouse gas linked to climate change, and Nitrogen Oxide (NOx), a collection of gases that contribute to air pollution. Diesel and petrol engines have improved massively in recent years, with better filtration systems and more efficient engines meaning that modern cars emit only a third of the NOx and a fifth of the particulates of cars built before 2009.

At Mitsubishi, we’re always striving to make our cars greener and more efficient, improving the fuel consumption of our petrol and diesel cars and ensuring they comply with the strictest emissions standards, whilst also pioneering the adoption of emission-reducing technologies such as plug-in hybrid cars.

CO2 emissions – hybrid vs. diesel and petrol

The main misconception around emissions is that diesel is worse than petrol. The truth is that they both produce emissions, but in the early 2000’s, diesels were believed to be significantly greener than petrol cars because they emited less CO2. It turns out that this did not take into account other emissions that cars produce, such as Nitrogen Oxides (NOx).

Hybrid Cars

Outlander PHEV - Hybrid Cars

No exhaust emissions while driving using electric motors.


When battery is depleted, hybrids revert to their standard engine, producing CO2 and NOx emissions.


Regular charging gives hybrids incredible fuel economy and ultra-low emissions for shorter journeys.

Petrol Cars

Eclipse Cross - Petrol Cars
Petrol engines

Modern petrol engines emit only tiny amounts of air pollutants such as particulates and carbon monoxide.


Produces more CO2 emissions than diesel cars but significantly lower NOx.

Steering wheel

Petrol engines are generally more refined and give a smoother drive than diesel.

Diesel Cars

Shogun - Diesel Cars
Diesel cars on the road

Diesel cars tend to be more fuel efficient than petrol cars and therefore particuarly suited for long distance driving.


Generally lower CO2 emissions than petrol cars meaning less contribution to global warming.

Diesel Engines

Diesel fuel emits more NOx emissions and particulate matter than petrol.

Car emissions - the full picture

Road transport (cars, trucks and buses) contributes to air pollution and global temperature rises, though it’s far from the only human activity that does. It’s a common misconception that cars are the main source of emissions which is actually not the case at all.

How green is my current car?

Next Greencar can give you a comprehensive breakdown of how the emissions and fuel economy of your current car. Compare against a new Mitsubishi to see how you would benefit.

Car Emissions Calculator Next Greencar awarded the Mitsubishi Outlander PHEV - Best SUV in 2015 for it’s fuel efficiency and green credentials.

Global Emissions

Pie Chart For Global Emissions

Electricty Generation and Heating (43.9%)

Manufacturing and Construction (18.2%)

Road Transport - cars, trucks and buses (15.9%)

Fuel combustion for other uses (12.2%)

Non-road transport (5.8%)

Other non-transport (4%)

Source: The International Organization of Motor Vehicle Manufacturers

Diesel and petrol engines are cleaner than ever

All new Mitsubishi’s are built to the latest Euro 6 emissions standards, meaning they emit around a third of the NOx and a fifth of the particulates of a car built before 2009.

Mitsubishi Eclipse Cross in white

All Mitsubishi cars come equipped with filtration systems designed to reduce emissions as much as possible.

Particulate Filters - Diesel Models

Captures and stores exhaust particulate matter (soot), and then through a process called regeneration, the accumulated soot is burnt off at very high temperatures, leaving the filter ready to capture more soot.

Exhaust Gas Recirculation - All Models

Recirculates a portion of the exhaust gas back to the engine cylinders, reducing the temperature of the engine and therefore the amount of NOx produced.

3 Way Catalytic Converter - All models

All catalytic converters turn toxic pollutants like carbon monoxide into less hazardous emissions. A 3 way catalytic converter is specifically designed to reduce NOx emissions as well.

Diesel Car Tax

The April 2017 budget introduced tax increases for diesel cars, pushing them up one band.

VED on new diesel cars will effectively go up by one band, but there will be no retrospective charges on existing diesel cars. The company car tax rate on diesel vehicles will be 4% higher than for an equivalent petrol car from April 2018.

Emissions test

By September 2018, all new cars will have passed a strict emission test carried out under real driving conditions, before being sold

Fuel pump

The UK Government has no current plans to change diesel taxation in a way that will retrospectively punish motorists

Congestion charge

The strictest Clean Air Zones will not charge new diesel cars. Only cars older than 2015 (pre-Euro 6) will face penalties

Emissions by model from 1st April 2018

The Outlander PHEV

Our award-winning plug-in hybrid SUV is the UK’s best-selling plug-in hybrid.

With a high efficiency 2.4L Atkinson Cycle engine and an electric range of up to 33 miles, the Outlander PHEV is our flagship vehicle, designed to meet the challenges of a changing world today.

Mitsubishi Outlander PHEV
Superb range

Superb Range

Capable of up to 33 miles on pure electric power and a total range of up to 532 miles from a single tank of petrol, the Outlander PHEV can take you further for less.

Low emissions

Low emissions

With official MPG figures of 159.5 mpg, the Outlander PHEV is exempt from the London congestion charge and has ultra low VED and great benefit in kind for business drivers.

Explore the Outlander PHEVBook a test drive

*Official NEDC EU MPG test figure shown as a guide for comparative purposes and is based on the vehicle being charged from mains electricity. This may not reflect real driving results. Up to 33 mile (28 mile under new WLTP testing) EV range achieved with full battery charge. 532 mile total range achieved with combined full battery and petrol tank. Actual range will vary depending on driving style and road conditions. Outlander PHEV range fuel consumption in mpg (ltrs/100km): Full Battery Charge: no fuel used, Depleted Battery Charge: 50.4mpg (5.6), Weighted Average: 159.5mpg (1.8), CO2 emissions: 40.3 g/km.

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