Should I change to 97 petrol? How many gasoline numbers have been changed to 97

Personally, I don't think it's necessary, the compression ratio can't reach the standard of 97, and then the combustion point is different, which may damage the engine.

It is recommended to use No. 93, after all, more than 100,000 family cars, considering the long-term consideration of gasoline ** and the engine to eat such a good oil is also a bit of a waste. If you want to add or not to clean the fuel tank, you can add No. 97 when it is almost used up.

You don't need to clean the tank. Use half of it and change it to 97, so that the car has a process of transformation.

In most areas, 97 gasoline has been changed to 95 gasoline, and the gasoline designation is determined by the composition of the gasoline.

The higher the mark of gasoline, the stronger the anti-knock performance of gasoline, but the higher the grade, the better, and the gasoline label needs to be reasonably selected according to the compression ratio of the automobile engine.

Standard gasoline is composed of isooctane and positive heptane liquid heptane, isooctane has good knock resistance, octane number is 100, n-heptane has poor riot resistance, heptane number is 0, such as 90 gasoline, indicating that the gasoline and isooctane containing 90%, n-heptane 10% standard gasoline has the same anti-knock resistance, which can ensure that the compression ratio is not greater than 9 engine use, no deflagration phenomenon, the compression ratio of the engine is the core energy-saving index of the car.

Important Properties: Refers to the ease with which gasoline evaporates in a carburetor. It has an important impact on engine starting, warm-up, acceleration, air resistance, fuel consumption, etc. The evaporability of gasoline is comprehensively evaluated by three indicators: distillation range, vapor pressure, and gas-liquid ratio.

Distillation range. Refers to the temperature range of gasoline fractions from the primary to final distillation point. The boiling range of aviation gasoline is narrower than that of motor gasoline.

Vapor pressure. Refers to the 38 vapor pressure measured in the standard instrument, which is an index that reflects the tendency of gasoline to produce gas resistance in the fuel system and the difficulty of engine starting. Motor gasoline requires a higher vapor pressure, while aviation gasoline requires a lower vapor pressure than motor gasoline.

Gas-liquid ratio. Refers to the ratio of the volume of vapor to the volume of liquid fuel at a specified temperature and atmospheric pressure in a standard instrument. The gas-liquid ratio is a function of temperature, and it is more reliable to use it to evaluate the gas resistance of gasoline than to use distillation range and vapor pressure.

Summary. The difference between gasoline: 1. Environmental protection:

Although No. 92 gasoline and No. 93 gasoline are the same, No. 92 gasoline is more environmentally friendly. Although No. 95 gasoline and No. 97 gasoline are labeled the same, No. 95 gasoline is a little more environmentally friendly. After the implementation of the national V gasoline standard, No. 93 gasoline was adjusted to No. 92 gasoline, and No. 97 gasoline was adjusted to No. 95 gasoline, which is more environmentally friendly and clean.

2. Standard: No. 93 gasoline and No. 97 gasoline are produced according to the gasoline standard of China IV. No. 92 gasoline and No. 95 gasoline are produced according to the gasoline standard of China V.

3. Anti-knock resistance: The anti-knock performance of No. 97 gasoline is higher than that of No. 93 gasoline. The anti-knock performance of No. 95 gasoline is higher than that of No. 92 gasoline on behalf of the octane number of the car, and the octane number determines the anti-knock resistance of the fuel.

The engine of a car is powered by the piston motion done by the cylinders. If the pressure is too high, a deflagration phenomenon will occur. so that the engine does not work properly!

In fuel, the anti-riot substance is isooctane.

It's totally okay to kiss this.

The higher the gasoline grade, the more qualified it is to prove purity and environmental protection.

There is no problem with the high number.

The difference between No. 92 gasoline: 1. Environmental protection: Although No. 92 gasoline and No. 93 gasoline are labeled the same, No. 92 gasoline is more environmentally friendly.

Although No. 95 gasoline and No. 97 gasoline are labeled the same, No. 95 gasoline is a little more environmentally friendly. After the implementation of the national V gasoline standard, No. 93 gasoline was adjusted to No. 92 gasoline, and No. 97 gasoline was adjusted to No. 95 gasoline, which is more environmentally friendly and clean. 2. Standards:

No. 93 gasoline and No. 97 gasoline are produced according to the gasoline standard of China IV. No. 92 gasoline and No. 95 gasoline are produced according to the gasoline standard of China V. 3. Explosion resistance:

The anti-knock performance of No. 97 gasoline is higher than that of No. 93 gasoline. The anti-knock performance of No. 95 gasoline is higher than that of No. 92 gasoline on behalf of the octane number of the car, and the octane number determines the anti-knock resistance of the fuel. The engine of a car is powered by the piston motion done by the cylinders.

If the pressure is too high, a deflagration phenomenon will occur. so that the engine does not work properly! In fuel, the anti-riot substance is isooctane.

I believe many people know that before the 92 and 95 gasoline that we often add now, some of them use 97 gasoline, but do you know why there is no 97 gasoline now? Let's find out. In fact, it is because of the reform of gasoline.

No. 97 gasoline is the gasoline specified in the national IV standard, and China's fuel label has been the national VI standard after several reforms.

According to national regulations, in order to be more environmentally friendly, it is necessary to reduce the content of sulfur and other compounds in automobile exhaust, so as early as January 1, 2017, when the national motor vehicles began to implement the national V emission standard, the oil label has also been changed. Since the old label was not enough to meet the new emission standards, the oil that had been used all the time was converted to four oil labels, of which No. 92 replaced No. 93 oil and No. 97 gasoline was changed to No. 95 gasoline.

The No. 95 gasoline used now will be more environmentally friendly and cleaner than the No. 97. However, after the 97th to the 95th, the average fuel consumption increased, that is, 60 liters of fuel per car, more liters of fuel were consumed, but the actual change was not much. After all, fuel consumption is mainly consumed in driving conditions and driving habits.

The higher the oil label of gasoline, the stronger the anti-knock of gasoline, but it is not that the higher the oil label, the better.

I believe that many people basically know that in the past, we often add No. 92 and No. 95 gasoline, and some of them use No. 97 gasoline, but do you know why there is no No. 97 gasoline now? Let's find out together. I think it's because of the reform of gasoline.

No. 97 gasoline is the fourth national standard for gasoline, and China's fuel label has become the sixth national standard after several reforms.

According to national regulations, the content of sulfur and other compounds in automobile exhaust should be reduced for the sake of environmental protection. Of course, as early as January 1, when the national car began to implement the national fifth emission standard, the oil label also changed. Since the old label was not enough to meet the new emission standards, it was natural to change from the oil label that had been used all along, with oil 92 replacing oil 93 and gasoline 97 replacing gasoline 95.

Compared to 97 gasoline, the 95 gasoline used now will be more environmentally friendly and clean. However, after No. 97 to No. 95, fuel consumption increased on average, that is, each car with 60 liters of fuel needs to consume more liters, but the actual change is not much. After all, fuel consumption is mainly in driving conditions and driving habits, which will be more significant.

The oil designation is actually the ratio of the anti-knock performance of gasoline to the anti-knock performance of standard gasoline. The higher the oil standard of gasoline, the stronger the anti-knock performance of gasoline, but it is not that the higher the oil standard travel gear, the better. When choosing the oil label, it is best for the car owner to refuel according to the manufacturer's requirements.

Millions of car purchase subsidies.