Workshop Wisdom: Prevent AdBlue® Crystallization. Liqui Moly DEF Anti Crystal Additive Concentrate
🔩 Crystallization in Your SCR System? Here's What You Need to Know
If you drive a modern diesel vehicle, there’s a good chance it relies on an SCR (Selective Catalytic Reduction) system—aka that little tank of AdBlue® or DEF that helps reduce emissions. It’s clever, it’s clean, and… it’s fussy.
One of the most common problems SCR systems face? Crystallization.
And if you've never heard of it, you're not alone.
❄️ What Is Crystallization—and Why Should You Care?
When DEF (Diesel Exhaust Fluid) sits in the tank or runs through the system, it can begin to crystallize—especially in cold temperatures, humid conditions, or if the system isn’t in regular use.
These tiny crystals don’t seem threatening... until they:
- Clog injectors
- Trigger dashboard faults
- Compromise NOx conversion
- Lead to costly service bills
Left unchecked, a few stubborn crystals can turn into a system-wide headache. And once it's clogged? You're looking at downtime, diagnostics, and potentially hundreds in repair.
🧠 Here’s Where the Smart Stuff Comes In
Enter a little preventative genius: an additive that keeps everything flowing smoothly.
Instead of waiting for buildup and breakdowns, many mechanics and fleet managers now use a DEF anti-crystallization concentrate. SHOP HERE It keeps injectors clean, reduces surface tension in the fluid for better atomization, and prevents the formation of hard deposits in the system.
Which means: ✅ Your SCR stays efficient
✅ Your engine keeps running smoothly
✅ You avoid those “Uh-oh” fault codes
👩🔧 The Fix That Actually Works SHOP HERE
It’s not about gimmicks—it’s about science-backed prevention.
The product we trust is Liqui Moly DEF Anti Crystal Additive Concentrate (250ml). Just a small dose per tank can keep your system clean, responsive, and far from the repair bay.
Here’s what it offers:
- Prevents hard deposits & crystallization in SCR systems
- Improves the fluid’s ability to atomize—enhancing NOx conversion
- Protects your tank and injectors long-term
- Trusted by garages and diesel experts across Europe
🛠️ Solve the Problem Before It Starts
It’s always better to prevent than repair—especially when repairs involve emission systems and surprise expenses.
Whether you're a seasoned mechanic, a savvy fleet manager, or just someone who wants their diesel to keep running without hiccups, this little bottle might be your best-kept secret.
🛒 Ready to Fix It Before It Breaks SHOP HERE
Prevent potential AdBlue® problems with this additive
Our DEF Anti Crystal Additive Concentrate provides a reliable remedy. It prevents both the formation of harmful crystals and icing.
By adding AdBlue® via the filler neck, the freezing point can be lowered from the original -11.5 °C to just under -16 °C, thus ensuring full functionality even at very cold temperatures.
The additive can also be used preventively against crystalline deposits. Its high effectiveness in the SCR system ensures an optimum evaporation process. The surfactants it contains reduce the surface tension of the AdBlue® and prevent the formation of droplets and the resulting liquid film. This prevents blockages at the injectors or in the pump and avoids expensive repairs.
Liqui Moly ADBLUE Crystal Preventer Concentrate – Protects SCR Systems
• Ash-Free Formula: Prevents malfunctions in SCR systems for diesel engines
• Deposit Reduction: Minimises build-up in the AdBlue® tank and injection system
• Improved Atomisation: Reduces surface tension for fine dispersion of the urea solution
• Crystallisation Prevention: Optimises AdBlue® return flow to lower the risk of crystallisation
