Product details
Wynn’s Anti-Crystallisation Additive for AdBlue – Keep Your Commercial Vehicle Tickety-Boo
If you’ve ever been caught out by pesky blockages or crystallisation in your AdBlue system, Wynn’s got just the ticket. This clever additive, designed specifically for commercial vehicles running on AdBlue, tackles that stubborn crystal build-up which can muck up your system and lead to costly repairs or downtime. A proper lifesaver for keeping things on the road.
So, what’s the deal?
In a nutshell, this 500ml bottle of Wynn’s anti-crystallisation additive stops those annoying crystals from forming and clogging up your AdBlue system. By keeping the fluid flowing smoothly, it nips a common problem in the bud for any vehicle using AdBlue tech to cut emissions.
Why bother?
When crystallisation sets in, it can block injector nozzles and pipes, messing with your AdBlue dosing and often triggering engine warning lights. That’s a right pain—especially if you’re running a fleet or rely on your commercial vehicle day in, day out. Using this additive regularly means fewer unexpected breakdowns and a lighter bill from the garage. Win-win.
How do you use it?
Easy as pie. Just pour Wynn’s additive straight into your AdBlue tank as per the instructions—no faff, no fuss. It works hand-in-hand with your regular AdBlue fluid to keep everything ticking over nicely.
The nitty-gritty: specs and packaging
Made by Wynn’s, a name well-known and trusted in the world of automotive additives, this product bears the model number W21090. The 500ml bottle is compact and lightweight—just 560 grams and measuring 4.6 x 9 x 25.6 cm—so it’s a doddle to store and handle. Perfect for popping in the workshop or cab without taking up much room.
Wondering if it fits all vehicles using AdBlue? It’s mainly geared towards commercial vehicles, so it’s worth double-checking your specs if you’re unsure. And remember, no additive will replace good old-fashioned maintenance and using top-quality AdBlue.
All told, Wynn’s anti-crystallisation additive is a cracking bit of kit for anyone wanting to steer clear of the hassle and expense that come with AdBlue blockages. Give your vehicle the TLC it deserves, and enjoy smoother runs without the niggle of crystallisation issues looming over you.


