You must have noticed fuel prices going up at the fuel station. The surge is heavily driven by the conflict in the Middle East following the Strait of Hormuz closure, which has affected supply.
Due to this current fuel uncertainty, Australia has released a diesel product with a higher sulphate content. This move is intended mainly to help manage supply and cost pressures. But it also brings a new concern for vehicle owners.
The concern is mainly about how high sulphur diesel can impact vehicles and what vehicle owners can do about it. In this quick guide, we break down everything in simple terms.
You will get answers to:
- What high sulphur diesel is?
- What it does to your engine?
- How can you protect your engine from it?
What Is High Sulphur Diesel?
High sulphur diesel contains more sulphur compared to the cleaner diesel most modern engines are designed for.
On the surface, nothing feels different when you fill up. The change happens after the fuel burns inside the engine. The extra sulphur starts to react with heat and moisture. This can lead to unwanted by-products.
That is where the issue begins. As time goes on, high sulphur diesel starts to damage your engine from the inside, even when everything seems normal on the outside.
Why Is High Sulphur Diesel Used?
Fuel supply pressure plays a big role here. When supply tightens or costs rise, higher sulphur diesel becomes a short-term option to keep vehicles moving.
There is also a small upside. Sulphur helps with fuel lubrication. Engines can run smoothly in the short term.
The problem shows up later. Once the fuel burns, the leftover compounds do not stay harmless. In the present reality, vehicle owners need to take this seriously as the effect builds slowly and not altogether at once.
How Does High Sulphur Diesel Affect Your Vehicle?
The impact builds step by step inside the engine.
After combustion, sulphur turns into gases. These gases mix with the moisture that naturally forms inside the engine. This reaction creates a mild acid that blends with engine oil.
Sulphuric acid is both toxic and highly corrosive. Slowly, the acid starts to wear down internal parts. The process is gradual, which makes it easy to miss early on.
You may notice small changes such as:
- Engine response feels slightly off
- Oil does not last as long as expected
- Wear appears earlier than usual
- Excessive smoke in your vehicle
These signs point to one thing. That is high sulphur diesel damaging your engine. All by creating conditions that lead to corrosion and faster breakdown of key components.
How to Protect Your Engine Against High Sulphur Diesel
The first step is simple. Move from a basic service to a performance service. A standard service keeps your car running, though it does not deal with the deeper effects linked to fuel quality.
A performance service goes further. It focuses on cleaning, protection and restoring internal parts affected by fuel-related deposits. This becomes important when using high-sulphur diesel for your vehicle.
Car Servicing and You supports this with performance servicing backed by BG products. We use each product with a clear purpose, based on what your engine needs.
Here is how the treatment works in practice:
- BG EPR Engine Performance Restoration
Deposits can build around piston rings and affect how they seal. This leads to higher oil use and reduced efficiency. BG EPR softens and clears these deposits, which helps restore compression. - BG Dynamic Engine Cleaner
Sludge builds up when oil breaks down faster, especially under poor fuel conditions. This cleaner removes stubborn residue that sits deep inside the engine and restricts smooth operation. - BG Advanced Formula MOA
Engine oil faces more stress when sulphur levels rise. This formula strengthens the oil and helps it last longer between services. It adds a layer of protection against early oil breakdown.
Each of the products targets a specific issue. Together, they help reduce the long-term issues that high-sulphur diesel creates.
Keep Your Engine Protected
Fuel quality may shift again, but your approach to servicing? It can stay consistent. Even a small change in how you maintain your vehicle can help you avoid larger issues in longer run.
The high sulphur diesel impact on your vehicle builds quietly. Acting early makes a clear difference.
Car Servicing and You provides performance servicing designed to address these exact conditions, helping your engine stay in better shape for longer. We are also BG Certified service advisors and technicians, which means you can trust us for performance service.
Contact our team today to get your vehicle diagnosed.
