What does 92 gasoline mean? What is the difference between 95 and 92 gasoline

No. 92 gasoline is an octane number of 92, n-heptane.

8 gasoline, suitable for mid-range cars (with a relatively low compression ratio), December 18, 2013 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and the Standardization Administration of the People's Republic of China.

The fifth phase of the national standard for motor gasoline was jointly released.

"Gasoline for Vehicles" (GB 17930-2013 instead of GB 17930-2011).

Vehicle gasoline (GB 17930-2013) for the first time specified the density index, the value of which is 720 775 kg m3 at 20 hours, in order to further ensure the relative stability of vehicle fuel economy. Compared with GB 17930-2011, the most important changes can be summarized as "three reductions, two tones, and one increase".

"Three minus" refers to the sulfur mass fraction.

The index limit was reduced by 80% from 50 g g to 10 g g in the fourth stage. The limit of manganese mass concentration index was reduced from 8 mg L to 2 mg L in the fourth stage, and the artificial addition of manganese-containing additives was prohibited. will be olefins.

The content was reduced from 28% in the fourth stage to 24%.

"Two-tone" refers to the adjustment of vapor pressure and grade. Among them, winter vapor pressure.

The lower limit was raised from 42 kPa in the fourth stage to 45 kPa, and the upper limit of summer vapor pressure was reduced from 68 kPa to 65 kPa in the fourth stage. At the same time, taking into account the fifth stage of motor gasoline. Due to the reduction of octane number caused by sulfur reduction and manganese ban, as well as the shortage of domestic high-octane number resources, combined with the actual situation of the oil refining industry, the standard adjusts the grade of motor gasoline from No. 90, No. 93 and No. 97 to No. 89, No. 92 and No. 95 respectively.

One addition is to add the technical requirements and test methods of No. 98 motor gasoline ( in the appendix of the standard. It is estimated that the implementation of "Motor Gasoline" (GB 17930-2013) will significantly reduce vehicle pollutant emissions, and it is expected that the vehicles in use can reduce nitrogen oxides every year.

About 300,000 tons, and the new car can reduce nitrogen oxides by about 90,000 tons in 5 years.

No. 92 gasoline refers to gasoline with an octane number of 92 and a n-heptane of 8, which is suitable for cars with a relatively low compression ratio. Different gasoline components such as straight-run gasoline components, catalytic cracking gasoline components, and catalytic reforming gasoline components obtained from petroleum refining are blended with high-octane number components after refining, and are mainly used as ignition internal combustion engines for automobiles. The appearance of gasoline is a transparent liquid, flammable, the main components are C5 to C12 aliphatic hydrocarbons and naphthenic hydrocarbons, as well as a certain amount of aromatic hydrocarbons, gasoline has a high octane number (anti-knock combustion performance), according to the octane number is divided into 90, 92, 95, 97, etc.

No. 92 gasoline is gasoline with an octane number of 92, which is suitable for mid-range cars (with a relatively low compression ratio), and generally the vast majority of naturally aspirated engine models are now added to No. 92 gasoline.

The main difference between No. 92 and the previous No. 93 gasoline is that the sulfur content index limit has been lowered from 50 milligrams per kilogram to 10 milligrams per kilogram, and the manganese content index limit has been lowered from grams per liter to grams per liter. At the same time, the octane number and anti-knock resistance of gasoline have been reduced (so the oil number has been reduced from 93 to 92). The difference between 92 and 95 gasoline is that the anti-riot index is modified to "not less than", which only means that the anti-riot index is different, and the higher the gasoline label, the higher the anti-riot index!

No. 92 gasoline is a gasoline with an octane rating of 92 and a n-heptane rating of 8. It is usually suitable for mid-range gasoline vehicles with low compression ratios.

The difference between No. 95 and No. 92 gasoline is that the content is different, the composition is different, and the anti-knock resistance is different.

Gasoline is a volatile and flammable hydrocarbon mixture liquid that is fractionated and cracked from petroleum, and can be used as fuel. The appearance is a transparent liquid, flammable, with a distillation range of 30 to 220, the main components are C5 C12 aliphatic hydrocarbons and naphthenes, as well as a certain amount of aromatic hydrocarbons, and gasoline has a high octane number. (anti-knock combustion).

And according to the octane number is divided into 89, 90, 92, 93, 95, 97, 98 and other grades, from January 2012, gasoline grades 90, 93, 97 revised to 89, 92, 95.

The important characteristics of gasoline are evaporation, stability, knock resistance, corrosiveness and cleanability.

Health hazards of gasoline to people:

1. Gasoline is a narcotic toxic substance, which has an anesthetic effect on the central nervous system. Mild poisoning symptoms include ataxia, dizziness, nausea and vomiting.

2. Severe poisoning is manifested as toxic encephalopathy after inhaling high-concentration gasoline vapor, and a few can produce cerebral edema, neck stiffness, flushing, pulse fluctuations and shallow and rapid breathing; Inhalation of very high concentrations of gasoline can cause sudden loss of consciousness, reflex respiratory arrest and death.

3. In addition to paying attention to the bottom sealing of the cab to reduce the diffusion of gasoline from the engine to the cab, we should also pay attention to opening the special windows for ventilation and ventilation when driving, so as to reduce the gasoline concentration in the cab.

The gasoline label represents the anti-knock resistance, and the larger the mark, the better the anti-riot ability, which has nothing to do with the quality of the gasoline itself, nor does it mean that the higher the mark, the less impurities there will be. What is Knock Resistance? The first thing about this kind of detonation is the inside of the engine, where the mixture is ignited by the spark plug and the energy is released to drive the piston to do work.

Knocking, on the other hand, is simply an abnormal combustion inside the engine.

No. 92 gasolineThat's itOctane numberNo less than 92 gasoline. No. 95 gasolineIt refers to gasoline with an octane rating of 95 or higher. Next, we will take a closer look at the two types of gasoline.

1.What is Octane?

Before we understand the two types of gasoline, we must understand what the octane number is, because the octane number is an important indicator to distinguish gasoline. The official term for octane number is: refers to the index of the fuel used in the car to resist the explosion.

In other words, it is the fuel that suppresses the ability of the detonation. The higher this value, the stronger the ability of the fuel to suppress the shock and explosion, and the less likely it is to damage the engine.

No. Gasoline

No. 92 gasoline is gasoline with an octane rating of 92 or higher. This is the most lazy gasoline of all. Many entry-level cars and cost-effective cars are using this kind of gasoline, this gasoline is not good knock resistance, long-term use will damage the engine, but it doesn't matter, during the life of the engine, in addition to the car performance will be reduced year by year, it will not have any impact on your car.

So don't worry about that. But No. 92 gasoline has a fatal drawback, that is, it is polluting to the environment.

No. Gasoline

No. 95 gasoline is gasoline with an octane rating of 95 or higher. Don't look at the number is only 3 larger, but it is ahead of 92 gasoline in all aspects. But now it is the mainstream gasoline in China, and because of environmental protection policies, China's emission requirements for vehicles are even higher.

Because 95 gasoline causes much less pollution to the environment than 92 gasoline, more and more cars now use 95 gasoline, so that it can perfectly meet China's national standard, otherwise the car will not be listed. Moreover, after using 95 gasoline, there will be no shortcomings like 92 gasoline, no matter how long 95 gasoline is used, its impact on the performance of the car is negligible.

In general, 92 gasoline refers to gasoline with an octane rating of 92 or higher. No. 95 gasoline refers to gasoline with an octane rating of 95 or higher. This is also the official definition, there is nothing to say.

92 gasoline and 95 gasoline are the labels of gasoline, which is the ratio of the anti-knock resistance of actual gasoline to the anti-knock resistance of standard gasoline. The higher the grade, the stronger the anti-explosion performance. To choose gasoline according to the engine of the car, the higher the grade, the better.

92 gasoline refers to gasoline with an octane ester content of 92, while 95 gasoline refers to gasoline with a content of 95, and 95 gasoline has a greater calorific value than 92.

92 gasoline refers to gasoline with an octane number of 92, and 95 refers to gasoline with an octane content of 95.

The main difference between 92 gasoline and 94 gasoline is that the ingredient content is not the same. Here's an introduction to the main differences between the composition content of 92 gasoline and 94 gasoline:

Gasoline is 92% isooctane and 8% n-heptane. And No. 94 gasoline is rich in 95% isooctane and 5% n-heptane.

2. The anti-riot substance in gasoline is isooctane, and the ability of gasoline to resist knocking when burning in the engine is anti-knocking. The number of 92 or 94 gasoline represents the anti-knock resistance of the fuel, and the larger the label and the greater the isooctane content, the better the anti-knock performance. 3. Anti-knock refers to the ability of gasoline to resist detonation and combustion under various conditions of use.

The difference between 95 and 92 gasoline is:

1. The content is different.

It is clear that there is no difference between No. 92 gasoline and No. 95 gasoline, and their oil products are the same. The main components analyzed are that 92 gasoline is composed of 92% isooctane and 8% n-heptane, while 95 is composed of 95% isooctane and 5% n-heptane, and the reason why 95 gasoline is slightly more expensive is that the proportion of isooctane is larger.

Isooctane also has another role is anti-knock, that is, the higher the proportion of iso-octane, the better the anti-knock performance. Each engine will be given a comprehensive evaluation before leaving the factory, and the requirements for anti-explosion will be put forward according to the performance and other data characteristics of the engine, that is, what grade of gasoline needs to be used.

2. **Different.

95 gasoline is a little more expensive than a tank of 92 gasoline. Subtract the ** of No. 92 gasoline from No. 95 gasoline and multiply it by 8 to get the **difference in fuel consumption of the car per 100 kilometers.

3. The power is different.

No. 95 gasoline with higher octane number is suitable for engines with higher compression ratios, because this type of engine will be more and more advanced with the increase of operating speed, and as a result, when the speed reaches a critical point, it will occur that the oil and gas in the cylinder will be burned in advance before ignition, which is called detonation, and increasing the octane number of gasoline can effectively improve the knock resistance.

The difference between 95 and 92 gasoline is:

1. **Different.

92 gasoline is cheaper than 95 gasoline. At present, the fuel at regular gas stations comes from Sinopec and PetroChina (commonly known as "two barrels of oil"), and even some private gas stations do not produce fuel by themselves, but are imported from two barrels of oil. But no matter how the ** changes, at the same gas station, the ** of 92 gasoline is cheaper than the * 95 gasoline.

2. The octane number is different.

The octane number refers to the anti-knock index of gasoline, and the higher the octane number, the better the anti-knock performance. No. 92 gasoline is rich in 92% isooctane, 8% n-heptane; Whereas 95 gasoline is rich in 95% isooctane and 5% n-heptane. Different isooctanes, the power fuel consumption of gasoline is different, for example, 95 gasoline is more powerful than 92 gasoline, and the fuel consumption is lower.

The precautions for adding 95 gasoline to a No. 92 car are:

1. When using vehicle gasoline, improper fuel flow into the fuel system may damage the fuel system and engine.

2. Do not use gasoline containing methanol or alcohol.

3. Do not splash fuel on the paint surface to avoid damaging the paint surface.

4. If there is ice around the fuel tank door and it cannot be opened, gently push or knock on the fuel tank door to de-ice and open the fuel tank door.

5. Prevent injection due to excessive fuel pressure.

Gasoline Label: It is the ratio of the anti-knock resistance of actual gasoline to the anti-knock of standard gasoline.

Value. 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.

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.