Find out what changing attitudes and legislation towards diesel fuel could mean for the future of diesel cars

The UK government has announced plans to end the sale of new petrol and diesel cars by 2030. Until a ban comes into force you can save money by shopping around for car insurance 

The government proposals are just some of the latest actions demonstrating a changing attitude towards diesel engines. 

According to The Society of Motor Manufacturers and Traders (SMMT), in May 2022, just 7,614 diesel cars were sold, which was just 7.48% of car sales and was half as many as the same time a year ago.

This compares with 56,767 new petrol cars, which is a drop in registrations of petrol vehicles of 25%, and a small increase for battery operated electric vehicles to 37,348.

Although an outright ban is not yet in place, legislation has been introduced that does make owning a diesel car more expensive. In other countries some governments have pledged to ban diesel vehicles by 2025.

The mayors of Paris, Madrid, Athens and Mexico City have pledged to ban diesel vehicles from their respective cities by 2025.

Following a further change to the rules on tax and electric cars in April 2020, all electric cars with zero emissions are now exempt from Vehicle Excise Duty (also known as car tax), but some petrol and diesel car owners will have to pay a higher rate.

The latest actions to discourage motorists from using diesel prove the tide has turned against the fuel in recent years but there are still a large number of diesel cars being sold and there is a second-hand market for diesel cars.

This is because:

The environmental focus in the early 2000s was to reduce carbon emissions, which led to a push away from petrol and towards diesel.

While CO2 emissions are indeed lower from diesel cars than from petrol cars, diesel engines produce four times as much nitrogen dioxide and 22 times more particulates. 

The Volkswagen emissions scandal in 2015 marked a turning point in attitudes towards diesel fuel. 

It emerged that the manufacturer had intentionally programmed the engines of its diesel cars to pass emissions tests, despite the cars’ real-world emissions significantly exceeding set limits.

In 2020 the manufacturers of Mercedes Benz, Daimler AG, was ordered to pay compensation to owners of its cars following issues with diesel emissions. The company has paid out £26bn so far.

In the UK, the emphasis and incentives from the government has been to encourage people to move towards buying greener cars by offering tax breaks to owners of new and existing electric vehicles

It would seem the case for buying a diesel-fuelled car is waning as from April 2020, all electric cars became exempt from car tax. 

While the owners of some of the most polluting diesel vehicles might have to pay £2,175 for the first year, they register the vehicle. After that, it's £150 a year to tax a petrol or diesel car.

Many manufacturers have stopped producing diesel models as a standard option. 

So, it’s likely a second-hand version of a diesel car may soon be all that is on offer.

There has not been an outright ban as there are so many diesel cars still on the roads but if legislation and attitudes continue to change, demand for used diesel cars could plummet in years to come.

You may be weighing up the appeal of diesel cars versus petrol, or even thinking about switching to an electric car in the future, especially if the government introduces further incentives for greener cars.

In order to keep costs as low as possible, you can shop around for diesel car insurance or try and reduce your annual car insurance premium.

Experienced drivers and have a good driving record can still get a good deal on their insurance. If you are not an experienced driver you can cut car insurance costs by adding a named driver who is older and more experienced to the policy. 

Taking a Pass Plus course if you are a new driver may also reduce your premiums but you will need to check with the insurer first.

Having a car with is the type of car you drive, with the car’s speed, security features, and value all playing a big part in increasing the cost of your insurance.

This will result in a cheaper monthly premium. Before you take out car insurance make sure you can afford any voluntary excess. This excess is in addition to the compulsory excess set by your insurance provider. This is what you would have to pay if you ever have to claim. 

Pay for your insurance in one go if you can. Spreading the cost of your car insurance over 12 monthly payments may seem cheaper but remember you will be paying interest on top of the amount you pay towards your car insurance premium.    

Limiting your miles makes you less of an insurance risk. Simply because you are reducing your risk of having an accident. When you take out your car insurance policy the insurer always asks for an estimate of your maximum annual mileage. You need to try and you’re your mileage low, although you need to be realistic as to how much you will drive. 

Having an alarm or immobiliser is considered a theft deterrent and by deterring car thieves you can reduce your car insurance. Not all insurers will offer this, so check first.

Black box, or telematics, insurance can help reduce your car insurance over a period of time. 

A small device, the black box is installed in your car. 

You don’t need to own car to get car insurance. Unlike a full car insurance policy, you won’t build up a no claims bonus, but it does mean you can drive someone else’s car, as long as you have their permission. If you are only planning on borrowing a car you can also compare quotes for short-term or temporary car insurance

If you need to insure several cars search multi-car insurance policies.

Multi insurance might also be suitable:

Compare third party and fully comprehensive car insurance