AdBlue Myths: Separating Fact from Fiction

AdBlue Myths: Separating Fact from Fiction

By Steve Buckley, Sales Manager, Fleetmaxx Solutions Burnley

AdBlue, otherwise known as Diesel Exhaust Fluid (DEF), plays a crucial role in reducing harmful emissions from modern diesel engines. However, misconceptions about AdBlue continue to cause confusion among fleet managers and vehicle operators.

As a trusted fleet and fuel cost reduction specialist, Fleetmaxx Solutions manufactures licensed AdBlue right here in the UK. It’s time to clear up some of the most common myths.

Myth 1: AdBlue is Made from Urine

🚫 False! While AdBlue contains urea, it is a synthetic, high-purity solution made of:

32.5% synthetic urea

67.5% deionised water

Myth 2: AdBlue Damages Diesel Engines

Not true! AdBlue is not a fuel additive - it is injected into the exhaust system, where it helps convert harmful nitrogen oxides (NOx) into harmless nitrogen and water vapour.

Myth 3: AdBlue Is a Low-Quality Additive

AdBlue must meet strict ISO 22241 standards to ensure quality and prevent contamination. Fleetmaxx Solutions manufactures licensed AdBlue, guaranteeing superior purity and reliability.

Myth 4: DEF and AdBlue Are the Same

While DEF and AdBlue serve the same function, they are not always interchangeable due to regional differences in purity levels. AdBlue is specifically formulated to work in European SCR systems.

Myth 5: AdBlue is Harmful to Humans and Animals

AdBlue is non-toxic and safe to handle. While it’s not meant for consumption, accidental contact with skin or eyes can be rinsed away with water.

Myth 6: AdBlue Is Expensive

Not if you buy from the right supplier! Buying directly from Fleetmaxx Solutions can save you up to 50% compared to forecourt prices.

Myth 7: More AdBlue Improves Performance

Adding more AdBlue than required won’t improve performance - it only increases costs. Modern diesel engines use precise dosages for maximum efficiency.

Myth 8: AdBlue Freezes and Becomes Useless

AdBlue can freeze at -11°C, but SCR-equipped vehicles have heating elements to thaw it without affecting performance.

Myth 9: AdBlue Evaporates Quickly

Proper storage—sealed, in a cool, dry place—ensures AdBlue remains effective for long periods.

Myth 10: AdBlue Quality Doesn’t Matter

Using low-quality or contaminated AdBlue can damage your SCR system, leading to higher emissions, costly repairs, and compliance risks. Always purchase AdBlue from a trusted source like Fleetmaxx Solutions to ensure reliability and performance.

Myth 11: AdBlue Is Difficult to Store

AdBlue storage is simple—keep it cool, dry, and away from direct sunlight. Fleetmaxx Solutions provides expert storage guidance to keep your AdBlue in top condition.

Myth 12: AdBlue Is Difficult to Buy

Struggling to find high-quality AdBlue? Fleetmaxx Solutions offers AdBlue in various sizes, from small containers to bulk supply, plus a top-up service so you never run out!


At Fleetmaxx Solutions, we’re committed to providing high-quality, cost-effective AdBlue solutions for your fleet. Call us on 01367 704 910 and Open an AdBlue account today to start saving!

Steve Buckley, Sales Manager, Fleetmaxx Solutions Burnley



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