What oil does an excavator use? Comprehensive analysis of hydraulic oil, engine oil selection and hot topics
Recently, discussions about construction machinery have become more popular across the Internet, especially the topic of excavator maintenance, which is related to hot topics such as "oil price fluctuations" and "new energy substitution". This article will combine hot topics in the past 10 days, conduct a structured analysis of excavator oil selection, and provide practical data comparison.
1. Popular event correlation: three major focuses in the field of construction machinery
| Ranking | hot topics | Relevance | Search volume (10,000) |
|---|---|---|---|
| 1 | International oil prices rise | Directly affects oil costs | 480 |
| 2 | New energy excavator put into production | long-term substitution trends | 320 |
| 3 | Extreme weather construction | Oil weather resistance requirements | 210 |
2. Analysis of core oil types
Excavators need to use two key oil products: engine oil and hydraulic system oil. The specific indicators are compared as follows:
| Oil type | Standard model | Replacement cycle | High temperature viscosity |
|---|---|---|---|
| engine oil | CI-4/CJ-4 | 500 hours | 15W-40 |
| Hydraulic oil | HM46/HV68 | 2000 hours | ISO VG46 |
| gear oil | GL-5 85W-90 | 1000 hours | SAE 85W-90 |
3. Brand selection and performance comparison
Combined with the sales data of the e-commerce platform in the past seven days, the performance of mainstream brands is as follows:
| brand | Market share | Price range (yuan/liter) | User ratings |
|---|---|---|---|
| Shell | 34% | 45-80 | 4.8 |
| Mobil | 28% | 50-85 | 4.7 |
| Great Wall | twenty two% | 35-60 | 4.6 |
| Kunlun | 16% | 30-55 | 4.5 |
4. Seasonal adaptation plan
According to the extreme weather warning issued by the meteorological department, oil use recommendations in different environments:
| climate type | Oil selection | Hydraulic oil selection | Things to note |
|---|---|---|---|
| High temperature and drought | 10W-50 | HV68 | Add filter element inspection |
| Severe cold and snowfall | 5W-30 | HV32 | Start after preheating |
| humid and rainy | 15W-40 | HM46 | Waterproofing agent added |
5. Oil product upgrades under the new energy trend
The electric excavator technology white paper recently released by Sany Heavy Industry shows that there will be structural changes in the demand for traditional oil products:
| System type | Electric replacement rate | Reserve oil | New needs |
|---|---|---|---|
| Power system | 100% | none | Insulation coolant |
| Hydraulic system | 30% | Bio-based hydraulic oil | Special oil for electronic pump |
| Transmission system | 70% | Synthetic gear oil | low conductivity grease |
6. Answers to common misunderstandings among users
1.Myth: The more expensive the oil, the better｜Actual: It is necessary to match the engine technology generation. Using CJ-4 on older models may block the oil circuit.
2.Myth: Hydraulic oils can be mixed｜Actual: Different brands of additives will undergo chemical reactions, causing the filter element to quickly fail.
3.Myth: Oil becomes ineffective when it becomes darker in color｜Actual: The cleanliness of hydraulic oil needs to be judged by a professional tester, and the error rate of visual inspection is as high as 60%.
Conclusion:Under the dual influence of oil price fluctuations and environmental protection policies, reasonable oil selection has become the key to reducing excavator operating costs. It is recommended to conduct oil testing every 500 hours and dynamically adjust the maintenance plan based on the equipment working conditions. Continue to pay attention to the progress of new energy technologies and plan oil replacement routes in advance.
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