Peugeot 508 Driving, Side

Diesel Cars

Browse our excellent range of new and used diesel vehicles

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What is a diesel vehicle?

Vauxhall Insignia, Exterior, Front

Many vehicles, including diesel vehicles use an internal combustion engine (ICE) in order to work. The engines are made up of multiple components and need a fuel in order to create combustion. The most common engines are petrol and diesel engines, and it is the latter which we will explain in more detail below.

Diesel can be purchased in standard or premium form. Regular diesel is predominately chosen for most everyday cars, whilst premium diesel is designed to clean soot and oily build-up from the diesel engine's fuel system.

Economy and Range

Grey BMW 3 Series, rear, parked

Diesel cars have the ability to drive large distances on a single tank of fuel, with some models able to go 1,000 miles or more between fill-ups.

Popular diesel saloons such as the BMW 5 Series and Peugeot 508 can both return around 70mpg. Other high-economy heroes include the Dacia Sandero (80mpg) and Ford Fiesta (78mpg).

Sporty diesel models are available too, offering enhanced performance, along with decent economy.

Should I buy a diesel vehicle?

How do diesel cars and vans work?

A diesel internal combustion engine usually consists of pistons, cylinders, fuel injectors and glow plugs.

In simple terms, it could be described using the saying 'suck, squeeze, bang, blow'. The process starts off by a piston descending, sucking air into the cylinder through intake valves as fuel is also injected via injectors (suck).

When all the valves close, the piston comes back up mixing and compressing the air and fuel (squeeze).

Glow plugs are there to help heat things up and help emissions. Diesel engines have a compression-ignited injection system, as opposed to a spark-ignited system used by most petrol vehicles. The diesel is injected into the combustion chamber and ignited by the high temperatures achieved when the gas is compressed by the piston (bang).

The piston rises up, pushing the spent air and fuel mixture out through exhaust valves (blow).

Renault Trafic Exterior Front
When will diesel cars be banned?
Under current plans, the sale of new diesel and petrol cars will be discontinued in 2030, with some hybrids on sale until 2035. This does not affect used diesel and petrol vehicles.
What happens if you put petrol in a diesel car?
Don't start the car, and call your breakdown provider. Push the car to a safe spot if possible. 
Who makes the best diesel engine for cars?
This is a matter of opinion, but without Rudolph Diesel, who creating the first engine, there would be no diesel engines at all. As for manufactures, Ford and BMW are renown for making excellent diesel engines that offer superb economy and performance. 
Difference between petrol and diesel cars when moving off
Diesels are perhaps slightly easier to get moving, due to their increased torque they produce.  

Find your perfect diesel vehicle

At Evans Halshaw, we have a large selection of diesel vehicles, available in both our new and used stock.

We make it easy to find your next car, especially if you want an economical diesel car. This is because you can search via fuel type in our search perimeters, as well as tailoring your search further with make, model, colour, body style, number of doors, transmission, age, mileage, mpg, CO2 and finance type.

And as always, all our Evans Halshaw dealers are on hand to offer any help or advice whilst searching for your next car.