How to Open a Locked Urea Tank Cap?
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If you have the key, press it firmly and turn counterclockwise. If you don't have the key, there is a notch at the top or bottom; align it, press down, and turn. There will definitely be a rotation arrow on the cap. Additional Information: 1. Automotive Urea: Automotive urea is an essential product for heavy-duty diesel vehicles to meet the China IV emission standards. It refers to a urea aqueous solution with a urea concentration of 32.5% and a solvent of ultra-pure water, made from urea crystals and ultra-pure water. Heavy-duty trucks, buses, and other diesel vehicles must use an appropriate SCR system in their exhaust treatment to meet the China IV emission standards. This system requires the use of a urea solution to treat nitrogen oxides in the exhaust. 2. SCR System: SCR is the optimal choice for emission reduction. Currently, China's diesel standard GB19147-2009 requires a sulfur content ≤350ppm, while ECR-DOC technology requires fuel with a sulfur content below 10ppm. SCR can tolerate diesel with a sulfur content of 350ppm, making it technically feasible for widespread adoption. SCR-equipped China IV engines offer better fuel economy than EGR technology, require fewer modifications to the engine, have lower demands on fuel and oil, and have advantages in the continuity of technological upgrades. SCR catalysts also have good durability and do not risk clogging.