

❄️ Keep your diesel running crystal-clear and worry-free!
Wynn's Anti Cristallisant is a 500ml additive designed to prevent and dissolve harmful crystal deposits in AdBlue SCR systems. Compatible with all AdBlue and DEF fluids, it maintains injector and pump cleanliness, enhances emission control efficiency, reduces vehicle downtime, and supports fuel economy. Easy to use and ideal for both commercial fleets and private diesel vehicles, it treats up to 15 liters of AdBlue per 125ml dose, providing cost-effective, preventive maintenance for long-lasting SCR system performance.
| Manufacturer | Wynn's |
| Brand | Wynn's |
| Model | W21090 |
| Product Dimensions | 4.6 x 9 x 25.6 cm; 560 g |
| Item model number | W21090 |
| Manufacturer part number | W21090 |
| Item Weight | 560 g |
S**N
Recommend for using and at the low cost it is.
Appears to work a treat.. well worth putting in to prevent crystallisation of the Adblue system
C**N
Adblue cleaner
Excellent works well. Good quality
A**L
Very pleased with product to date..
I've been using this product for around 2yrs now and it has stopped the forming of crystals around the adblue filler and any splashback from filling, so I can only assume it has done it's work inside the adblue tank as well. I normally add 100ml per 10 liters of adblue (outside, before filling, give it a shake and fill up your tank) I've heard some horror stories about adblue tanks and systems blocking up due to crystallization and the costs involved in the repair and replacement of components etc so I am hoping this product will do as it says on the bottle and the signs are it does. I only use around 60ltrs or adblue a year so to keep my vehicles system clean is a priority... tbh, I don't know why they can't add it at manufacture, although I guess it's another add on you need to buy to do someone else's job. So far very pleased with product and no noticeable detrimental signs, apart from a slightly different smell at the tail pipe.
M**1
Good stuff
Item is good , seems works well
J**N
Seems to work fine.
Used this in my Skoda Superb 2.0 tdi for the last 100k miles. Had no issues with adblue system whatever.
M**L
Add blue system
Great product thanks
U**N
Best adblue additive to prevent crystalisation
Best adblue additive to prevent crystalisation Use this every 6-12 months when I need to topup 10L on a VW Tiguan and on my Mercedes EClass Never had adblue issues so it obviously does its job when used with fresh adblue
M**E
Would buy again
No idea if it works, it didn't make it worse. Double check the size though, get the biggest one
Trustpilot
3 weeks ago
2 months ago