92 or 95 gasoline, which is more economical? Car owners must know the misunderstanding of refueling!
What does the gasoline label represent?
The gasoline mark represents the anti-knock performance of gasoline when burning, and the anti-knock resistance of oil is expressed by the octane number, the higher the octane number, the higher the anti-knock performance. Like what
No. 92 gasoline is required to have an octane number of not less than 92
No. 95 gasoline is required to have an octane number of no less than 95
The grade has nothing to do with purity.
No. 92 or No. 95, which is more resistant to burning?
Generally, 95 gasoline is considered to be more resistant to burning. This is mainly due to its high octane number and slow combustion. But in fact, different grades of gasoline have little impact on the average fuel consumption, and many experimental platforms have found that the difference is only about 0.1 liters / 100 kilometers after the actual measurement of the final fuel consumption data. Therefore, the fuel saving effect of No. 95 gasoline is very limited compared with No. 92.
The higher the marking, the better for the car?
It's not that the higher the marker, the better! The choice of gasoline should be based on the engine compression ratio, and the compression ratio of the engine is large, and the gasoline with good anti-knock performance is required, otherwise, the combustion is not sufficient, and the oil-gas mixture will be ignited and exploded, which will produce detonation and affect the power. Therefore, the oil number should be selected according to the compression ratio range.
What is the right designation?
For new cars, look at the instruction manual or the number on the oil cap to refuel~
Deliberately increasing the grade of gasoline may lead to the engine not adapting and increase fuel consumption.
Note that old cars should not be mixed
Mixing of different grades of gasoline may result in inadequate combustion. As a result, carbon deposits can be generated, which can shorten the life of the engine, both of which can harm your car.