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5 Signs You’re Using Poor-Quality AdBlue (And How to Fix It)

5 Signs You’re Using Poor-Quality AdBlue (And How to Fix It)

Not all AdBlue is created equal. While it may seem like a simple fluid, using poor-quality or contaminated AdBlue can lead to serious engine problems, compliance issues, and higher operational costs.

In the UAE’s growing market, counterfeit and low-grade AdBlue is more common than you think. Here’s how to spot the signs — and protect your vehicles.

1. Dashboard Warnings & Error Codes

Your diesel vehicle’s onboard diagnostics system is your first line of defense. If you’re getting repeated “DEF quality low” or “SCR malfunction” warnings, it’s a red flag that your fluid is not up to standard.

These warnings can lead to:

  • Power reduction or “limp mode”

  • Downtime until the issue is resolved

  • Costly repairs to the SCR system

2. Increased DEF Consumption

Using more AdBlue than usual? Poor-quality or diluted DEF evaporates faster and performs less efficiently, causing your system to overcompensate. This increases both your operating cost and your environmental footprint.

3. Crystallization or Build-Up

Low-grade AdBlue often contains impurities that can cause crystals to form in the tank or injectors. These buildups can clog the system, reducing performance or causing complete failure of the SCR system.

4. Strong Ammonia Smell

While AdBlue contains urea, it should never smell strongly of ammonia. If it does, this could be a sign of chemical imbalance or contamination. It’s not only unpleasant — it’s dangerous for your equipment.

5. Failed Emissions Test

The UAE’s emissions regulations are becoming stricter. If your vehicles are failing tests or inspections, one of the first things to check is the quality of your DEF supply. Poor-quality fluid = poor emissions control.

How to Protect Your Fleet

✅ Buy Certified: Make sure your supplier adheres to ISO 22241 standards.

Check the Source: Ask where and how the fluid is produced. SiriusBlue is made in the UAE and fully certified.

Inspect Packaging: Look for sealed containers, proper labeling, and batch traceability.

Choose a Reliable Partner: SiriusBlue offers guaranteed purity, tested quality, and on-time delivery across the UAE.

Conclusion: Don’t Risk It

When it comes to your fleet or equipment, cutting corners with DEF is a costly mistake. By choosing SiriusBlue AdBlue, you ensure:

  • Optimal performance

  • Long-term cost savings

  • Full environmental compliance

📞 Get in touch today for certified AdBlue backed by reliable service and UAE manufacturing.