Cleaning the injection system and filters: essential maintenance for engine performance

The injection system and filters play a key role in engine performance and service life. Over time, however, the injectors, carburettor and diesel particulate filter (DPF) can become fouled, leading to reduced efficiency, higher fuel consumption and even costly breakdowns.

💡 Regular cleaning helps preserve engine power, optimise fuel consumption and avoid expensive repairs.

👉 Discover why and how to maintain your injection system and filters effectively.

1. Why does the injection system become fouled?

Fuel naturally contains impurities and combustion residues that gradually accumulate in the injection system and filters.

🔹 Injectors and carburettors : the build-up of carbon deposits reduces fuel atomisation, impairing combustion.
🔹 The diesel particulate filter (DPF) : designed to trap fine particles in exhaust gases, it can become blocked if not maintained correctly.
🔹 Intake systems : oil and soot deposits disrupt the air/fuel mixture, reducing engine performance.

🚨 A fouled injection system leads to:
❌ Loss of power and engine hesitation.
❌ Increased fuel consumption.
❌ Difficult starting and misfires under acceleration.
❌ Higher pollutant emissions and a risk of premature failure.

2. The benefits of regular injection system and filter cleaning

💧 Regular cleaning helps to:

✔️ Optimise fuel atomisation, improving combustion and energy efficiency.
✔️ Reduce fuel consumption by maintaining an optimal air/fuel mixture.
✔️ Preserve engine power and smoothness by removing deposits that impair performance.
✔️ Prevent DPF fouling and extend its service life.
✔️ Reduce pollutant emissions and meet environmental standards.

📌 The result: a more efficient, cleaner and more economical engine.

3. How can you clean the injection system and filters effectively?

🔹 Step 1: cleaning the injectors and carburettor

🛠️ With a dedicated cleaner such as NET ESSENCE or NET DIESEL

📌 Directions for use:
1️⃣ Pour the cleaner directly into the fuel tank.
2️⃣ Drive normally so that the product can act on the injectors and injection system.
3️⃣ Repeat the process every 5 000 to 10 000 km for optimal maintenance.

✅ NET ESSENCE: ideal for petrol engines, it cleans the injectors and carburettor.
✅ NET DIESEL: designed for diesel engines, it removes deposits from high-pressure injectors.

🔍 Read also: NET ESSENCE vs NET DIESEL: what is the difference and which product should you choose?

🔹 Step 2: cleaning the diesel particulate filter (DPF)

🛠️ With a dedicated cleaner such as FAP particulate filter cleaner

📌 Why?
A fouled DPF prevents exhaust gases from escaping properly and can lead to excessive fuel consumption or engine failure.

📌 Directions for use:
1️⃣ Add the DPF cleaner to the fuel tank.
2️⃣ Drive on the motorway at high engine speed for 20 to 30 minutes to activate filter regeneration.
3️⃣ Repeat the process every 5 000 to 15 000 km to prevent fouling.

🚨 Do not wait for the first symptoms! A blocked DPF may need an expensive replacement.

🔍 Read also:Clogged DPF? Discover a solution to avoid a costly breakdown!

🔹 Step 3: checking and replacing filters

🛠️ Preventive maintenance

✔️ The fuel filter must be replaced in line with the manufacturer's recommendations (every 20 000 to 50 000 km).
✔️ The air filter must be cleaned or replaced to avoid poor combustion.
✔️ The diesel particulate filter (DPF) must be monitored and cleaned with an additive if necessary.

🔍 Read also:Why can a clogged particulate filter reduce your engine's performance?

4. Signs that your injection system needs urgent cleaning

🚨 If you notice these symptoms, cleaning is needed promptly:

❌ Sudden loss of power.
❌ Rising fuel consumption.
❌ Difficult starting.
❌ Excessive black exhaust smoke.
❌ An engine warning light on the dashboard.

👉 A simple clean with NET ESSENCE, NET DIESEL or FAP cleaner may be enough to solve the problem and avoid a costly breakdown.

🔍 Read also: Signs that your injection system needs urgent cleaning

Simple maintenance for a healthy engine!

💡 Regularly cleaning the injection system and filters ensures clean combustion, optimises engine performance and avoids expensive repairs.

🚀 Want to protect your engine?

🔗Discover our injection system maintenance solutions