OptiSpray™ has been developed and patented by Yara, the worlds largest AdBlue® manufacturer, specifically for agricultural applications and other applications where engines operate intermittently, idling, at low average speeds, with a high number of stops/starts, with low engine loads or in cold conditions (e.g. city buses, refuse trucks, etc.). OptiSpray™ prevents deposits from forming in the SCR system. This helps to reduce vehicle downtime and maintenance costs. Based on a 32.5% urea solution, it meets the purity requirements of the AdBlue® standard ISO 22241. With a low concentration of surfactant (<0.05%), OptiSpray™ helps to prevent deposits from forming and therefore does not damage the SCR catalyst. It is also suitable for use in SCR vehicles that operate at high engine loads and drive long distances. So you dont have to use two separate urea solution products - OptiSpray™ covers all your needs.