
Wynns Crystal Clean & Protect is a specialized treatment designed specifically for AdBlue® (Diesel Exhaust Fluid/DEF) systems in modern diesel vehicles. This innovative 125ml formula contains advanced cleaning agents and protective compounds that remove deposits, prevent crystallization, and protect critical AdBlue® components including injectors, pumps, and sensors. Regular use helps maintain optimal SCR (Selective Catalytic Reduction) system operation, prevent costly system failures, and ensure continued compliance with emissions regulations.
Add entire contents directly to the AdBlue® tank during refilling. One 125ml bottle treats up to 10-15 liters of AdBlue®. For preventative maintenance, use with every third AdBlue® refill or every 10,000 miles. For vehicles experiencing AdBlue® system issues (warning lights, reduced performance), add to a nearly empty AdBlue® tank before refilling for maximum concentration and effectiveness. Compatible with all vehicles using AdBlue®/DEF including passenger cars, SUVs, and commercial vehicles.
Crystal Clean & Protect is particularly valuable for vehicles operating in challenging conditions including frequent short trips, extreme temperatures, or extended idle periods where AdBlue® system issues are more common. This product addresses a critical maintenance need in modern diesel vehicles, as AdBlue® system failures can result in engine power reduction, vehicle limp mode, or even vehicle immobilization under emissions regulations in many countries.
The specialized formula is designed to work with standard AdBlue®/DEF fluid without altering its chemical composition or emissions reduction capabilities. Regular use helps prevent the crystallization issues that commonly affect AdBlue® injectors and sensors, especially in vehicles that experience frequent stop-start operation or are not driven regularly at highway speeds. For maximum system protection, consider using as a preventative treatment rather than waiting for AdBlue® system warning lights or performance issues to develop.
Note: Always ensure you are adding this product to the AdBlue®/DEF tank, not the diesel fuel tank. The AdBlue® filler is typically blue-capped and often located near the diesel filler or in the trunk/boot area on passenger vehicles.
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