How to use automotive urea
As environmental protection policies become increasingly stringent, automotive urea (AdBlue) is an important additive for diesel vehicle exhaust treatment, and its correct use has attracted much attention from car owners. This article will combine the hot topics and hot content on the Internet in the past 10 days to provide you with a detailed analysis of the correct use of automotive urea and precautions.
1. What is automotive urea?
Automotive urea is a high-purity urea solution with a concentration of 32.5%. It is used in the selective catalytic reduction (SCR) system of diesel vehicles and can effectively reduce nitrogen oxide (NOx) emissions. The following are its basic features:
| Project | parameters |
|---|---|
| Main ingredients | 32.5% urea + 67.5% deionized water |
| freezing point | -11℃ |
| boiling point | 103℃ |
| storage temperature | 0-30℃ (avoid direct sunlight) |
2. How to use automotive urea
1.Add timing: When the instrument panel shows that the urea level is lower than 20%, it needs to be added in time to avoid system alarms and power restrictions.
2.Add steps:
| steps | Operating Instructions |
|---|---|
| 1 | Turn off the vehicle and open the urea filler cap |
| 2 | Use a special filling tube or funnel |
| 3 | Pour slowly to the MAX mark |
| 4 | Clean up spilled solution and close the filling port tightly |
3. Precautions for use
1.Quality selection: It is necessary to use automotive urea that meets the GB29518 standard. Inferior products will cause:
| Hazards of inferior urea | Consequences |
|---|---|
| Impurities exceeding the standard | Blocked injection system (repair cost exceeds 10,000 yuan) |
| Concentration not up to standard | Exhaust gas treatment fails, triggering OBD alarm |
2.Winter use: When the temperature is lower than -11℃, please note:
• Add urea immediately after parking and use residual temperature to prevent freezing
• Use a urea tank with heating function (equipped with some high-end models)
• Never add illegal additives such as antifreeze
4. Frequently Asked Questions
| question | Professional answers |
|---|---|
| Urea consumption | Usually 3-5% of fuel consumption (about 1.5-2L per 100 kilometers) |
| Alarm handling | The yellow warning light is safe to drive, while the red warning light requires immediate attention. |
| Expiration processing | The shelf life is usually 12 months. Replacement is required after expiration. |
5. Latest industry trends
According to recent hot data:
| time | event | influence |
|---|---|---|
| 2023.11.15 | National VI b emission standards are fully implemented | Urea usage increased by 40% year-on-year |
| 2023.11.20 | A brand releases intelligent urea management system | Enables precise injection control |
Summary:Correct use of automotive urea can not only meet environmental protection requirements, but also extend the life of the SCR system. It is recommended that car owners: Check the urea level regularly, choose products from regular channels, and master winter usage skills. With the development of technology, intelligent urea management systems may become a new trend in the future.
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