AUTONEWS

What types of diesel are there? Differences between fuels

Knowing the types of diesel available on the market is essential for choosing the right fuel and ensuring proper engine performance and prolonging its useful life. Although they all share a common base, each type has different properties that make them more or less suitable depending on the vehicle and its intended use.

In this article, we explain the types of diesel available, their differences, and which one you should use depending on the type of engine and operating conditions.

Types of diesel according to their composition and use

We can classify the different diesel fuels according to their composition or use into:

Diesel A (or Gasoil A)...This is the conventional diesel found at most service stations. It is intended for commonly used diesel vehicles, such as passenger cars or vans.

It contains additives that improve combustion and reduce residue formation.

It maintains stable performance even in cold climates.

It is the most common fuel for modern diesel cars.

A+ or Premium Diesel...This is an improved version of the previous diesel, also known as premium diesel. It includes additional additives that improve engine efficiency and reduce fuel consumption.

It improves the cleanliness of the injection system.

It increases performance by between 2% and 5%.

It is typically used in high-end vehicles or those seeking more optimized engine maintenance.

Biodiesel...Biodiesel is obtained from recycled vegetable oils or animal fats. Its main advantage is its low environmental impact.

It reduces CO₂ emissions.

It can freeze at low temperatures, which is why it is often mixed with conventional diesel.

Not all engines are designed to use it without mixing. It is essential to consult the manufacturer.

B7, B10, and B20 Diesel...This classification indicates the percentage of biodiesel contained in the fuel:

B7: contains 7% biodiesel, suitable for most modern cars.

B10 and B20: with 10% or 20% biodiesel, respectively. Their use is more oriented toward commercial fleets or adapted industrial vehicles.

These fuels are designed to offer a more sustainable alternative without sacrificing good performance.

1D, 2D, and 4D Diesel...A lesser-known classification in Spain, but relevant in cold regions. It is based on the density and behavior of diesel at extreme temperatures:

1D: lighter, ideal for cold climates.

2D: for temperate climate conditions.

4D: more viscous, used primarily in industrial machinery.

Diesel B (Gasóleo B)...Also known as red diesel, it is intended exclusively for agricultural, industrial, and fishing use.

Not suitable for conventional vehicles.

It is cheaper, but has a formulation with fewer additives.

Its improper use in private cars carries significant penalties.

R33 Diesel...This is one of the newest fuels, also known as blue diesel. It is composed of recycled waste and synthetic paraffins, with a clear focus on sustainability.

It reduces CO₂ emissions by up to 20%.

Compatible with modern diesel engines without the need for modifications.

It is not yet widely available, but is gradually gaining ground.

What type of diesel should you use in your car?...Choosing the right type of diesel has a direct impact on engine performance, durability, and pollutant emissions. To avoid mistakes:

Always consult the manufacturer's manual. It clearly indicates which type of fuel is compatible.

If you have a modern car and are looking for greater efficiency, A+ diesel may offer better performance.

Avoid refueling with B diesel if your vehicle is not approved for it.

For fleets, commercial vehicles, or intensive uses, consider fuels with a higher proportion of biodiesel if your engine is suitable.

Today's market offers several types of diesel, each with specific advantages. Knowing them allows you to make more informed decisions when refueling, protect your car's engine, and reduce your environmental impact.

If you have any questions, consult your trusted workshop or check the manufacturer's specifications. The right fuel not only improves driving performance, but also prolongs engine life and contributes to a cleaner environment.

Mundoquatrorodas