What kind of antifreeze does Weichai add? Hot topics on the Internet and vehicle maintenance guide
Recently, among the hot topics on vehicle maintenance on the Internet, "What kind of antifreeze should be added to Weichai engines" has become the focus of attention of car owners and maintenance technicians. As winter approaches, the selection and replacement of antifreeze becomes key to ensuring vehicle performance. This article will combine the hot content of the past 10 days to provide structured data and suggestions for Weichai vehicle owners.
1. The role of antifreeze and the needs of Weichai engines
Antifreeze not only prevents freezing at low temperatures, but also prevents boiling at high temperatures, corrosion and scale formation. As a manufacturer of heavy-duty diesel engines, Weichai has high requirements for antifreeze, which must have the following characteristics:
| Features | request |
|---|---|
| freezing point | -35℃ to -50℃ (selected according to the region) |
| boiling point | ≥110℃ |
| Anti-corrosion properties | Contains organic acid technology (OAT) or compounding agents |
| Compatibility | Compatible with Weichai engine metal/rubber parts |
2. Recommendations for popular antifreeze brands and models on the entire network
According to recent discussions on e-commerce platforms and automotive forums, the following antifreeze brands are suitable for Weichai engines:
| Brand | Model | Applicable temperature | Features |
|---|---|---|---|
| Shell | Shell Rotella ELC | -45℃ to 129℃ | Long life, low corrosion |
| Castrol | Castrol ETC | -37℃ to 120℃ | Compatible with aluminum parts |
| Weichai original factory | WD series | -40℃ to 110℃ | Specifically designed for Weichai |
3. Antifreeze replacement steps and precautions
1.Drain old liquid: When the car is cold, open the water tank drain valve and drain the old antifreeze completely.
2.Cleaning system: Rinse 1-2 times with distilled water or special cleaning agent.
3.Add new liquid: Mix according to the ratio in the vehicle manual (usually 1:1 with water), and add to the "MAX" mark.
4.Exhaust inspection: Start the engine until the fan is running, make sure there are no bubbles and then add fluid.
Things to note:
- Avoid mixing different brands or colors of antifreeze.
- Check the freezing point regularly (it is recommended to replace it every 2 years or 60,000 kilometers).
4. Answers to recent hot questions
According to Baidu Index and Zhihu Hot List, the two issues that car owners are most concerned about are:
| question | answer |
|---|---|
| “Can Weichai National VI engines use ordinary antifreeze?” | No! National VI engines require special antifreeze with low ash content and low sulfur, otherwise the DPF system will be damaged. |
| "Does the antifreeze need to be replaced if it becomes cloudy?" | Yes, the cloudiness may be due to additive failure or contamination and needs to be replaced immediately. |
Summary: Weichai engines should choose high-quality antifreeze with high boiling point and strong anti-corrosion, and maintain it regularly. Referring to the original manufacturer's recommendations or well-known brand products can effectively extend the engine life. If you need further help, it is recommended to consult a Weichai authorized service station.
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