What is the formula for automotive urea?
2 Answers
Introduction to automotive urea formula: 1. Standard urea solution: High-purity urea 32.5%, deionized water 67.5%. 2. Antifreeze urea solution: High-purity urea 32.5%, deionized water 52.5%, methanol 15%. When selecting urea, choose qualified automotive urea that meets the following criteria: 1. Complies with GB29518-2013. 2. Has AdBlue certification issued by the German Automotive Industry Association. 3. Has CGT certification issued by the China Internal Combustion Engine Industry Association. As long as these three certifications are met, the product is qualified. Unqualified products can cause significant damage to the vehicle's three-way catalyst, and once damaged, it can only be replaced, resulting in high repair costs.
As an ordinary car owner, I often use urea solution when driving a diesel vehicle. The formula is basically 32.5% high-purity urea dissolved in deionized water, with a fairly fixed ratio, aiming to reduce nitrogen oxide emissions and make the vehicle more environmentally friendly. This stuff is called AdBlue or similar names—never add tap water or impure water, or the nozzle will clog, the engine will trigger a warning, and you’ll end up spending more on repairs. When buying, go to a reputable gas station or auto parts store—one canister lasts a long time and is eco-friendly. Every time I refill, I check the level indicator to ensure the right amount is added, saving money and giving peace of mind.
