❄️ Keep your diesel running crystal clear — because downtime is so last year!
Wynn's Crystal Clean & Protect is a 125ml additive designed to prevent crystallisation in AdBlue SCR systems. It cleans critical components like injectors and pumps, ensuring optimal diesel emission control, improved fuel efficiency, and reduced risk of costly repairs. Compatible with all AdBlue and DEF systems, it treats up to 15 litres per bottle and is easy to apply during refills, making it an essential preventive maintenance solution for diesel vehicles and commercial fleets.
| Manufacturer | Wynn's |
| Brand | Wynn's |
| Model | AdBlue Crystal Clean & Protect - 125ml |
| Package Dimensions | 24.1 x 22.8 x 4.7 cm; 0.14 g |
| Item model number | 21002 |
| Manufacturer part number | 21002 |
A**X
It really works! A must-have for AdBlue diesel engines!
I used this additive for my Peugeot 3008 Diesel, which is known for having a rather sensitive AdBlue system. Before using Wynn’s Crystal Clean & Protect, I kept getting error messages and warnings related to the emissions system. After adding this product regularly, the issues stopped completely. The system ran smoothly without any faults.This is one of the few additives that actually delivers real results. It helped keep everything clean and running properly - especially on long drives.I’ve since sold the car and won’t be going back to diesel again, but this additive was an absolute lifesaver while I had it. Highly recommended!
M**R
Does the job but don’t ignore a warning light
Does dissolve the crystals , my only warning is if your engine light comes on and off still take your car to a garage and ask them to investigate my pump had ceased and was squirting ad blue everywhere but in to the exhaust system!I now add this each time I add Ad-blue
C**S
Good brand.
Does what it says.Why did you choose this product over others?:Trusted Brand.Ease of use:Easy.
M**E
Excellent product
Stops ad blue from crystallisation
K**L
Good price
Works well. Better to prevent then to fix.
S**S
Essential purchase for diesels
Kept getting NOX warning and AdBlue faults on Peugeot Partner van, including dreaded 'going to not start in x miles'.Added this to the adblue tank in desparation before heading to a garage. Four days later, the lights started to go out, after a week and all is well again. Recommended
D**N
Seems to work
No issues 12 months in using this product.
D**G
Did the job.
Now I don't have the amber light on my dashboard, so it worked i suppose.
Trustpilot
3 weeks ago
2 days ago
