Currently reading: SMMT calls for end of ‘demonisation’ of diesel cars
Car industry organisation launches new consumer campaign to defend clean diesel technology from over-zealous policy makers

The Society of Motor Manufacturers and Traders (SMMT) has today launched a nationwide campaign to challenge what it calls the “increasing demonisation of diesel” as a fuel for cars.

The organisation has joined forces with major car makers including BMW, Ford, Jaguar Land Rover and Volkswagen to “set the record straight on diesel cars” in light of “widespread confusion” over pollutants emitted by diesel engines.

Diesel was once championed by policy makers for being the most efficient fuel type, but there has been a dramatic about-turn in recent months, with nitrogen oxides and other particulates produced by older diesel engines being blamed for respiratory-related health problems.

SMMT chiefs are concerned that the negative stories about diesels could deter motorists from considering the most modern and cleanest diesel cars as their next purchase.

They are also calling for policy makers not to levy financial penalties against motorists who drive diesels; some local councils in London are charging diesel-owning residents more to park outside their homes than their petrol-driving neighbours, while other local authorities are imposing surcharges based on a vehicle’s Euro standard rating, and yet more are levying charges regardless of performance.

“Today’s diesel engines are the cleanest ever, and the culmination of billions of pounds of investment by manufacturers to improve air quality,” said SMMT chief executive Mike Hawes. “Bans and parking taxes on diesel vehicles therefore make no sense from an environmental point of view.

“We need to avoid penalising one vehicle technology over another and instead encourage the uptake of the latest low-emission vehicles by consumers. The allegations against diesel cars made in recent months threaten to misguide policy making and undermine public confidence.”

A poll by YouGov indicated a startling lack of knowledge over the efforts made by the motor industry to improve the cleanliness of diesel engines. Just under one in five of those surveyed correctly indentified that power stations, and not diesel cars, are the biggest contributor of nitrogen oxides.

Almost three quarters of motorists surveyed were against penalties for the UK’s cleanest diesel engines, while 87% of respondents were unaware of the latest Euro 6 regulation-compliant vehicle emission technology.

More information about the SMMT’s new ‘Diesel Facts’ campaign can be found at or via a leaflet distributed at car dealers.

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lightbody 12 March 2015

better fuel obligatory?

I have a 2004 vw Bora tdi with the popular and successful PD engine, which has covered 81k miles on whatever diesel fuel I happened to stop at. It's always been a bit smelly and occasionally belches black smoke on full throttle, despite being regularly dealer serviced.

Recently I filled up with ultimate diesel to see what happened. While I haven't noticed improved economy or performance, I have noticed zero smell or smoke. I'm presuming that the additives that clean have done their job.

Therefore, should this type of fuel with it's additives be mandatory?

bomb 12 March 2015

There are a couple of

There are a couple of problems here, local level government placing blanket charges on all city dwelling diesel vehicles (including EU6) when they need to concentrate on older smokers. It's much cheaper to say 'diesel bad. give me some money' when a little thought and planning is what is actually required.

Second problem is motor manufacturers aren't about to roll over and start ditching diesel technology when there are medium to long term CO2 targets set arbitrarily by the EU to meet. It's already costing billions, electric/hybrid isn't yet sufficiently widespread to help bring CO2 averages down so diesel is going to be relied upon in the medium term to help achieve this. If governments suddenly start wanting to legislate against diesel expect some lobbying.

From a personal point of view my experience of modern downsized petrol engines is great...up until you check your trip computer and realise you're about 30 mpg shy of what the manufacturer says. Of course this is manufacturers building engines to pass lab tests rather than actually perform miracles in the real world and I can't see anyone wanting to change tests to reflect actual driving as this would 'raise' CO2 but would actually show a truer picture of emissions. My EU6 diesel can get a lot closer to official figures despite being a large vehicle and can get 60+ if you're not in a hurry.

TBC 12 March 2015


Diesel engines work best at high temperatures, which means being driven for at least 20-30 minutes at 2500-3000 rpm. When used in this way, the engines don't choke up, which leads to 'clouds of black smoke' being emitted from the exhaust. The alternative is to use a diesel cleaner every 5000 miles or so. I had a diesel Rover 75 a few years back, and regularly drove from Sussex to Manchester (and treated with diesel cleaner), when emission tested as part of the MOT test, the guy at the garage tested it 3 times because the figure it recorded was so low (he claimed it was the lowest he had ever seen) he thought his equipment was faulty. The car had done just over 100k miles.