How do you tell what grade of oil is in your car? Comprehensive analysis of gasoline label and vehicle matching guide
As oil prices fluctuate and environmental awareness increases, how to choose the correct gasoline grade for your car has become a hot topic for car owners. This article will combine hot topics on the Internet in the past 10 days and answer common questions about gasoline grade selection through structured data analysis.
1. The meaning and difference of gasoline labels
The gasoline grade represents the anti-knock performance. The higher the value, the stronger the anti-knock performance. The following is a comparison of three common labels:
| Gasoline label | Applicable compression ratio | Main ingredients | Average market price (yuan/liter) |
|---|---|---|---|
| No. 92 | 8.5-9.5 | n-heptane 92% | 7.35-7.80 |
| No. 95 | 9.5-10.5 | Isooctane 95% | 7.85-8.30 |
| No. 98 | 10.5 or above | Additive enhancement | 8.80-9.50 |
2. How to determine the applicable label?
Based on the hot discussion on the Internet, we have compiled the following judgment methods:
| Judgment basis | Specific operations | Things to note |
|---|---|---|
| vehicle manual | Check the inside of the fuel tank cap or the manual | The most authoritative reference |
| engine compression ratio | Query engine technical parameters | Compression ratio ≥ 10, no. 95 or above is recommended |
| Turbocharged models | Give priority to high-grade gasoline | Prevent knocking |
3. Analysis of common misunderstandings
1.The higher the number, the better?Recently, hot discussions on the Internet have pointed out that blind use of high-grade gasoline may increase the risk of carbon deposits, and is inconsistent with engine design and will actually reduce efficiency.
2.Mixing different labels?Mixing can be done in emergency situations, but long-term mixed use may lead to disorder of the ECU learning value, which requires timely reset and adjustment.
3.Ethanol gasoline choice?Hot discussions show that the corresponding relationship between E10 ethanol gasoline (containing 10% ethanol) and ordinary gasoline is: E92≈ordinary No. 89, E95≈ordinary No. 92.
4. Guidelines for handling special situations
| scene | solution | Principle description |
|---|---|---|
| plateau area | Can be used with downgraded numbers | For every 300 meters of altitude increase, the octane requirement decreases by 1 unit. |
| Old models | According to factory standard +1 number | Engine wear causes compression ratio changes |
| Performance modification | Must use specified label | Modifying the ECU will change the ignition advance angle |
5. The latest trends in 2023
1.Implementation of National VIB standards:Data from the entire network shows that the cleanliness of the new standard gasoline has been improved, and some models can be used with moderately reduced grades.
2.New energy impact:Hot discussions pointed out that hybrid models are more sensitive to gasoline labeling, and it is recommended to strictly follow the manual requirements.
3.Intelligent recommendation system:The latest car engine system can dynamically recommend oil products based on driving habits. It is recommended to pay attention to OTA upgrades.
Summary: Choosing a gasoline grade requires comprehensive consideration of vehicle technical parameters, usage environment, and the latest oil standards. When in doubt,The safest way is to follow the manufacturer’s instructions, which not only ensures engine performance but also avoids unnecessary fuel expenditure.
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