The car gasoline is 93, and it will be okay to add 97

Hello, it is recommended not to add 97 all the time, the current engines are more intelligent, in other words. If you keep adding 97, then you will feel the engine tremble when you add 93 later. Didn't start energetically.

It is recommended to add 93 and then add 97 once after adding 5 to 6 boxes to alluvial carbon.

In general, the larger the compression ratio, the higher the gasoline grade required. If gasoline is used below the recommended grade, it may cause problems such as "cylinder knocking", increased engine vibration, uneven driving, etc., reduce the power of the car, increase fuel consumption, lead to serious damage to the engine, and also damage the engine performance and shorten the service life. Specific to each car, but also to take into account some actual situations, generally adopt the principle of "high not low", but this does not mean that the higher the gasoline grade, the better.

Because the compression ratio of the engine, ignition advance angle and other parameters have been set at the factory, and the computer program has set up a micro-adjustment moderation program for gasoline with poor explosive resistance, but there is no corresponding program for high-grade gasoline. The blind use of high-grade gasoline in cars with low compression ratio engines can avoid engine knocking, but it will change the ignition time, resulting in an increase in carbon deposits in the cylinder, and long-term use will shorten the engine life. The best thing to do is to choose the oil number according to the instructions or according to the requirements indicated on the fuel tank cap.

Some riders have fallen into a misunderstanding about the use of gasoline, that is, they are keen to use high-grade gasoline. Even some riders regard the marking of gasoline as a standard of purity and quality of the oil. This is wrong.

In fact, the level of gasoline label only indicates the size of the octane number of gasoline, and the label must not be confused with purity and quality.

Hello! There's no problem, my car sometimes adds 97, but try not to mix, wait for a tank of gas to run out before changing. If you accidentally mix it up, it doesn't matter if you mix it once in a while.

To correct a mistake here, it is not that the higher the gasoline grade, the better, but only the octane number. 97 Gasoline means that the octane number of the gasoline is not less than 97 percent.

It is recommended to read the instructions, which should say that unleaded gasoline with a mark of 90 or more can be used, which means that gasoline with a label of 90 or more can be used. However, different engines have their own different compression ratios, with engines with compression ratios below 90 gasoline, engines with compression ratios between to 93 gasoline, and engines with compression ratios above 97 or 98 gasoline. If an engine with a compression ratio of less than 97 gasoline is used, the atomized gas-oil mixture will not burn when the cylinder is compressed to the very top, but will be burned during the downward movement of the piston, so that the gasoline will be discharged from the cylinder before it is completely burned, and the remaining energy will be turned into heat.

This wastes energy and puts a burden on the radiator. If the engine with a compression ratio above uses low-grade gasoline, the atomized gasoline will start to burn before the cylinder completes the compression stroke, which will cause certain damage to the engine. 90 Gasoline has strong knocking resistance, and if it is used for a long time, it will cause irreparable damage to the piston.

The use of 90 gasoline will reduce the service life of the engine, so that when the car is used for 8 to 10 years, it will be obvious that the car power is not strong, and the annual inspection of exhaust gas is unqualified, and the long-term use of high-grade gasoline will also cause slight damage to the car, and it will also shorten the time interval between carbon deposition cleaning, and it is not cost-effective from an economic point of view, so it is recommended to use 93 gasoline.

It will have a certain impact on the car, at least the power output of the car, because the engine compression ratio of different automobile engines is different, and different grades of gasoline adapt to different compression ratios.

No harm.

The base oil of No. 93 gasoline and No. 97 gasoline is the same, but No. 97 oil is more environmentally friendly and adds more antiknock agent.

First, the choice of how much oil to add to the car is determined according to the compression ratio of the automobile engine. It doesn't matter if you add gasoline once or twice by chance. The anti-knock performance and other indicators of the standard gasoline are consistent, and the gasoline mixture has no effect on the vehicle, and the gasoline of different standards will only have an impact on the exhaust emissions of the vehicle, and will not affect the normal operation of the vehicle engine.

2. The so-called compression ratio is the ratio of the maximum stroke volume of the piston in the cylinder to the minimum stroke volume. Cars with a compression ratio between to generally use No. 93 gasoline; For cars with a compression ratio greater than 97 gasoline, 97 gasoline should be used. Generally, the automobile engine with high compression ratio has high power and high fuel efficiency, but it is often not stable, so it needs gasoline with better anti-knock performance, and the advantage of No. 97 gasoline compared with No. 93 gasoline is that its octane number accounts for a high proportion of gasoline, and the anti-knock performance of fuel is good.

3. If the car with No. 93 gasoline is mixed with No. 97 oil, although there is no great harm to the vehicle, there may be incomplete gasoline combustion and the feeling of engine weakness, which is not only costly, but also a waste of resources.

Of course not, regarding the choice of gasoline labeling, it is recommended to strictly follow the instruction manual of the car, and the gasoline label recommended by the manufacturer is 97, which must be in accordance with the requirements.

Gasoline designation is the ratio of the knock resistance of actual gasoline to that of standard gasoline. The higher the grade, the stronger the anti-explosion performance. Standard gasoline is composed of isooctane and n-heptane.

It is not that the higher the grade, the better, and the gasoline grade should be reasonably selected according to the engine compression ratio. In December 2011, Beijing proposed to revise the gasoline grade from "No. 90, No. 93, No. 97" to "No. 89, No. 92, No. 95", and stipulated that the sulfur content should not exceed %.

Standard gasoline is composed of isooctane and n-heptane. Isooctane has good knock resistance, and its octane number is set at 100; N-heptane has poor knock resistance, and is prone to detonation on gasoline engines, and its octane number is set at 0. If the gasoline is marked 90, it means that the gasoline of this grade has the same anti-knock properties as standard gasoline containing 90% isooctane and 10% n-heptane.

For example, No. 90 gasoline can ensure that there will be no deflagration when used on an engine with a compression ratio of no more than 9, and No. 97 gasoline can be guaranteed to be used on an engine with a compression ratio not greater than that without deflagration.

The current engine is OK, and it is marked with more than 93 gasoline, indicating that it can be used. But the methane number is really different, not the higher the oil, the more alcohol, it is the methane content. Normally, if you fill high-grade fuel, the engine will have problems such as detonation, because the methane number is different, the combustion structure is also different, and there will be damage, but at present, 97 is also impure in terms of domestic oil, and there is no problem.

Mr. Feng had just bought a million-dollar luxury Mercedes-Benz car, and who expected that because of a refueling, it would add a lot of troubles to him.

Wrong gasoline added.

In the early morning of November 18, Mr. Feng drove the Mercedes-Benz he had just bought to the gas station of a branch of Sinopec Yinzhou to ask for No. 97 gasoline, and the staff of the gas station inserted the No. 93 fuel gun into the fuel tank of the Mercedes-Benz with sleepy eyes. Mr. Feng took a closer look, and Mercedes-Benz actually added No. 93 gasoline, "The car is not scrapped"!

The two sides are very divided.

Although the gas station realized the mistake, there was a big disagreement between the two parties on the amount of compensation: Mr. Feng demanded that the gas station be responsible for cleaning the fuel tank pipes, and pay a one-time compensation of 20,000 yuan or bear the follow-up repair and maintenance costs caused by the damage to the car caused by the wrong fueling; The gas station is only willing to bear the cleaning fee of 3,000 yuan. Unable to reach an agreement, Mr. Fung lodged a complaint with the Consumer Protection Council.

Compensation of 4,500 yuan.

The staff of the Yinzhou branch of the Consumer Protection Committee rushed to the scene to inspect and convened the two parties for mediation. In view of the fact that it is a new car that has just been bought, the Consumer Protection Committee suggests that the damage to the car can be entrusted to the Ningbo Mercedes-Benz 4S store for assessment. The 4S store said:

1. If the car is only cleaned, the cost is about 3,000 yuan, but the car no longer enjoys the remaining follow-up warranty period of the 4S store; Second, the car cleaning, replacement of some parts, in this way, the car can continue to enjoy warranty services, the cost of about 10,000 yuan.

This is a piece of news I saw, and I think it's pretty serious.

This doesn't matter, if you can't get over it, buy a gasoline octane additive. It's not a fuel treasure, that's basically useless.