Liqui Moly DEF Diesel Exhaust Fluid Anti Crystal Additive Concentrate - 250ml
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Full details
This guide helps owners of diesel vehicles with Selective Catalytic Reduction (SCR) systems understand and effectively use Liqui Moly DEF Anti Crystal Additive Concentrate. It prevents malfunctions in SCR systems by reducing deposits and crystallization, ensuring optimal performance. However, it's crucial to use the correct dosage to avoid potential issues. This product is designed to maintain the efficiency and lifespan of your diesel engine's emissions control system.
All features
| Model Part Number | 21799 |
|---|---|
| Brand | Liqui Moly |
Extended Product Information
FAQs
How often should I use the additive?
For best results, use the additive with every AdBlue fill-up.
Can I use too much additive?
Yes, it is important to follow the recommended dosage to avoid potential issues.
What happens if I add it to the fuel tank?
This product is designed for use *only* in the AdBlue tank. Adding it to the fuel tank may cause damage to the engine.
Is this product suitable for all diesel engines?
It is suitable for all diesel engines equipped with SCR systems using AdBlue.
How do I know if my vehicle has an SCR system?
Most modern diesel vehicles have an SCR system. Check your vehicle's manual or consult with a mechanic.
Can this product fix an already clogged SCR system?
While it can help prevent future issues, it may not fully resolve existing clogs. A professional cleaning may be required.
What is the shelf life of the additive?
Check the product packaging for the expiration date.
Where can I purchase Liqui Moly DEF Anti Crystal Additive Concentrate?
You can find this product at most automotive parts retailers and online.
Troubleshooting
SCR system error messages appear.
Check the AdBlue tank level and ensure the additive is used at the correct dosage. If the issue persists, consult a qualified mechanic.
Reduced engine performance.
Verify that the AdBlue system is functioning correctly. If crystallization is suspected, consider a professional system cleaning.
Additive not mixing well with AdBlue.
Ensure thorough mixing by adding the additive to the tank *after* filling it with AdBlue. This helps the two mix effectively.
Pros and Cons
Pros
- Protects against SCR system malfunctions.
- Extends the lifespan of SCR components.
- Improves the efficiency of the AdBlue system.
- Easy to apply and integrates seamlessly.
- Reduces the risk of costly repairs.
Cons
- Requires adherence to dosage instructions.
- Not a fuel additive; must be used in the AdBlue tank.
- May not fully reverse existing crystal build-up.
- Effectiveness depends on consistent use.
Setup, Compatibility & Care
- Compatibility: This product is specifically designed for use with SCR systems utilizing 32.5% urea solution (AdBlue, DEF).
- Application: Add the concentrate *directly* to the AdBlue tank after filling with AdBlue. Do not add it to the fuel tank.
- Dosage: Use the recommended dosage of 0.25% to the AdBlue solution (1:400). For example:
- 25ml treats 10L of AdBlue
- 250ml treats 100L of AdBlue
- 2.5L treats 1000L of AdBlue
- Care: Store in a cool, dry place. Avoid contact with skin and eyes. Follow the manufacturer's instructions for handling and disposal.