Is it better to add a higher grade of gasoline than a lower grade of gasoline?

In fact, your view is also a wrong view held by many car owners: the higher the label of the vehicle, the better. In fact, the level of gasoline marking only indicates the size of the octane number of gasoline, and different grades of gasoline should be selected according to the different compression ratio of the engine.

Cars with a small compression ratio should use 93 gasoline, and those with a large compression ratio should use 97 gasoline, and the compression ratio should be read in the manual. <>

If the engine with a high compression ratio uses low-grade gasoline, the cylinder temperature will rise sharply, the gasoline will not be burned completely, and the machine will vibrate strongly (commonly known as detonation), so that the output power will be reduced and the parts will be damaged. <>

If the engine with a low compression ratio insists on using high-grade gasoline, there will be a "stagnant combustion" phenomenon, that is, it is pressed to the end and it is not yet the spontaneous ignition point, and there will be incomplete combustion, which is not good for the engine. <>

So, take care of your engine and choose the right petrol number for him!!

Gasoline is marked according to the compression ratio of the gasoline engine to make the engine perform at its best. Usually, if the compression ratio is in, 90 motor gasoline should be used;If the compression ratio is in, 93 gasoline should be used;If the compression ratio is in, 97 gasoline should be used;If the compression ratio is in, 97 gasoline should be used;The longer the car is used, the more you can't lower the gasoline mark, otherwise the car will accelerate the wear and tear, just as the older a person is, the more nutrition should be strengthened.

If the car is suitable for 93 gasoline, if it is added to 97 or more, it basically has no adverse effect on the engine, but there is no special maintenance effect. However, if a car with more than 97 gasoline, such as Mercedes-Benz, BMW and other high-end cars, adds 93 and other relatively low gasoline, which will not only reduce the power of the car and increase fuel consumption, but also produce "knocking on the cylinder", resulting in serious damage to the engine.

There must still be some damage to the car. Many car owners would rather smoke some cigarettes themselves and drink high-grade gasoline for their cars, but if you do this, your car may not appreciate it. Obviously, adding high-grade gasoline to the low compression ratio engine will avoid the phenomenon of engine knocking, but there are advantages and disadvantages, because the cylinder pressure can not reach a certain value, the high-grade gasoline can not be fully combusted, which not only affects the engine to give full play to the power, but also easy to produce carbon deposits.

That's a bit more than worth the loss. [Oh oh car maintenance].

Raising the standard of fuel consumption for the car is not necessarily more fuel-efficient;Because if the label does not match the oil of your own model, it will cause carbon deposits after the oil burns in the fuel tank, and your car will be damaged in high school.

No, the heightened gasoline will cause the structural characteristics of the engine to change, which will lead to an increase in the combustion rate in the cylinder, which is easy to cause deflagration.

It is more fuel-efficient, because the higher the general grade, the purer the oil, and it is beneficial to the engine, so it is more fuel-efficient.

Hello, answer: 1) Gasoline marking is a coefficient that determines the deflagration resistance of fuel, and has nothing to do with the cleanliness of gasoline.

2) The higher the fuel grade, the slower the combustion rate of the oil, the lower the combustion deflagration, and the higher the compression ratio of the engine; On the contrary, the combustion speed of low-grade fuel is faster, the combustion deflagration is large, and the engine compression is relatively low.

3) Low-grade gasoline burns fast, and the ignition angle should lag behind; The high-standard vertical fuel burns fast and the sail destroys the magnanimity slowly, and the ignition angle should be advanced.

4) In addition to the manual, the OEM will mark the fuel label on the inside of the fuel tank cap with the recommended fuel label.

5) The fuel label recommended by the OEM can fully meet the requirements of the engine.

Summary. Hello dear and happy to answer your <>

The gasoline that was originally lowered was added with a high grade, and the impact was due to insufficient compression ratio, resulting in insufficient combustion, weak acceleration, and stagnant combustion state. It is a trivial matter that the power of the car is not good, and if it is not only a waste of money for a long time, but also will lead to an increase in carbon deposits, which is also bad for the engine. The higher the petrol grade, the better.

Gasoline marking refers to the octane number, which refers to the anti-knock xing of gasoline. The better the anti-knock gasoline, the higher the grade. The core point of using gasoline is whether the car engine and gasoline are compatible.

The manufacturer has set the compression ratio of the engine, ignition advance angle and other parameters in the driving computer in advance<>

What are the effects of adding a high grade to the gasoline that was originally added with a low grade?

Hello dear and happy to answer your <>

Originally, the gasoline of Chanchang with a low grade was added with a high grade, and the impact was due to the insufficient compression ratio, resulting in insufficient combustion, weak acceleration, and sluggish combustion state. It is a trivial matter that the car power is not good, and if it is not good for a long time, it will not only waste money, but also lead to an increase in carbon deposits, which is not good for the engine base. The higher the gasoline grade, the better the first.

Gasoline marking refers to the octane number, which refers to the anti-knock xing of gasoline. The better the anti-knock gasoline, the higher the grade. The core point of using gasoline is whether the car engine and gasoline are compatible.

The manufacturer has set the compression ratio of the engine, ignition advance angle and other parameters in the driving computer in advance<>

Hello dear, expand the content [Big Red Stuffy Spike Flower] What grade of gasoline should be used for a car, it should be subject to the manufacturer's regulations. The instruction manual of the car will clearly instruct the owner of what grade of gasoline should be used in the hut. As long as the owner chooses gasoline in strict accordance with the requirements of the instruction manual, there is absolutely no problem.

After a long time, the power will decline, the noise will increase, the jitter will be obvious, and even the piston and connecting rod parts inside the hair pants will be damaged. Open the fuel tank cap and directly see if it is written on it to add 92 or add 95, and it is correct to add it. This method is simple, practical, and reliable<>

There is no absolute benefit to high-grade gasoline for cars. What fuel to fill needs to be according to the car's vehicle instructions and the tips of the fuel tank cap. Any model manufacturer sold in China must make targeted adjustments for domestic road conditions and oil products.

It is an important indicator to measure the anti-knock resistance of gasoline jujube. Generally speaking, when the initial extraction is initially refined, the octane number is at most 90, and then it will be turned into high-grade gasoline by adding various anti-knock additives. 2. Characteristics of high-grade gasoline:

The combustion detonation of high-grade gasoline is quietly reduced, but the combustion speed is slow, and a high compression ratio is required; On the contrary, low-grade fuel burns faster, but the combustion knock is large, and a relatively low compression ratio is required. 3. Factors for selecting gasoline labels: Therefore, the labeling of gasoline should be determined according to the engine compression ratio.

Generally speaking, naturally aspirated engines with a compression ratio of more than 10, especially those with direct injection technology, require a high compression ratio, so they need high-grade fuel such as No. 95 and No. 97. Naturally aspirated or supercharged engines with low compression ratios require fuel with lower compression ratios, such as No. 93. 4. The hazards of blindly adding high-grade gasoline:

The engine can be quieter due to less knocking in high-grade gasoline. However, because the engine computer program of the automobile has to set the compression ratio, ignition advance angle and other parameters according to the oil product set to use, the adaptability program for micro-adjustment is set up for gasoline with poor explosive resistance, but there is no corresponding program for high-grade gasoline. Therefore, the use of high-grade gasoline in some engines with low compression ratios will lead to gasoline compression, insufficient combustion, and inability to accelerate while driving, and carbon deposits.

If your car needs high-grade gasoline, adding low-grade gasoline oil will have an impact on the power. If your car needs low-grade gasoline, adding low-grade gasoline has no effect on the power. The octane number of gasoline varies from one grade to another, and the higher the label, the higher the octane number of gasoline.

The higher the octane number, the better the stability of the gasoline.

Some car engines need to use low-grade gasoline, and some car engines need to use high-grade gasoline.

Engines that require high-grade gasoline operate with high internal pressure and temperature, so it is necessary to use gasoline with better stability, otherwise the engine will detonate.

Detonation is an abnormal combustion bending phenomenon in the engine. Knocking can affect the power of a car's engine, and severe knocking can even damage the engine.

If the stability of the gasoline is not good, the combustible mixture may burn prematurely with an increase in temperature and pressure during the compression stroke.

The combustible mixture of combustion will push the piston downward, at which point the piston will run upward, which is detonation.

When the piston runs upwards to compress the combustible mixture, the temperature and pressure of the combustible mixture rises dramatically.

It is advisable to choose the right petrol grade when using the car.

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