Price comparison between ethanol gasoline and regular gasoline, please an expert?

I'm not an expert. Some of their own opinions. Ethanol gasoline is expensive.

Because it has one more process than regular gasoline. It's about adding alcohol. Alcohol has always been the cause of supply and demand.

**High. Ethanol gasoline** has always been higher than regular gasoline.

1.The difference between ethanol gasoline and regular gasoline is that the ethanol in ethanol gasoline is a renewable resource, generally fermented from sorghum, corn, potatoes, etc., while regular gasoline is a non-renewable resource.

2.Compared to regular gasoline, ethanol gasoline is more environmentally friendly and can also reduce vehicle exhaust emissions and pollution. The gas pollution caused by ordinary gasoline is more serious, and automobile exhaust is also an important part of China's air pollution.

The calorific value of ethanol is 60% of that of ordinary gasoline, so ordinary gasoline is better than ethanol gasoline in terms of power performance and fuel economy. That is, the ethanol gasoline will be separated from the water, and the water will settle at the bottom of the tank. When the vehicle uses ethanol gasoline for the first time, you need to check the fuel tank first to see if the water in the fuel tank affects the engine work.

Ethanol gasoline and regular gasoline are better than regular gasoline.

If the calorific value of combustion is considered, pure gasoline is better, and the calorific value of ethanol gasoline is 60% of that of pure gasoline.

If you consider whether the fuel is burn-resistant, then ethanol gasoline is not as burn-resistant as pure gasoline, and the same volume of gasoline, a vehicle with pure gasoline can travel a longer distance.

If you consider the **Tanchang) of fuel oil, the ** of ethanol gasoline will be lower, and the same **, you can add more ethanol gasoline. But if you consider the cost performance, ethanol gasoline is still not as suitable as pure gasoline.

From the perspective of protection, ethanol gasoline burns more fully and has a certain cleaning function, so compared with pure gasoline, the use of ethanol gasoline can protect the environment.

So in general, ethanol gasoline and regular gasoline are better than regular gasoline.

Introduction to the safety of gasoline

The ability of gasoline to resist oxidation under normal temperature and liquid phase conditions is called the oxidative stability of gasoline, or stability for short. The indicators to evaluate the stability of gasoline are divided into iodine value, actual gum content, and induction period.

Refers to the ability of gasoline to resist knock combustion under various conditions of use. The knock resistance of motor gasoline is expressed by the octane number. The higher the octane number, the better the knock resistance.

The magnitude of gasoline's anti-knock ability is related to the chemical composition. Branched alkanes, olefins, and aromatics generally have excellent knock resistance.

The octane number of isooctane is 100, and the knock resistance is good; The octane number of n-heptane is 0, and the knock resistance is poor. The octane number of gasoline is determined by the octane counting machine. High spike octane gasoline can meet the needs of high compression ratio gasoline engines.

The high compression ratio of the gasoline engine means that the thermal efficiency is high, which can save fuel. Increasing the octane number of gasoline is mainly achieved by increasing the composition of high-octane gasoline, but it is also achieved by adding antiknock agents such as MTBE. The grades of gasoline are classified by octane number.

The differences between ethanol gasoline and regular gasoline are as follows:

1. The calorific value of ethanol gasoline is different from that of ordinary gasoline: the calorific value of ethanol is only 60% of that of conventional vehicle gasoline. Therefore, it will be worse than pure gasoline in terms of power and fuel economy.

2. The resources of ethanol gasoline and ordinary gasoline are different: the ethanol in ethanol gasoline is a renewable resource, which can be made by fermentation of sorghum, corn, potatoes, etc., which is more environmentally friendly; But pure gasoline is not renewable.

3. The environmental impact of ethanol gasoline and ordinary gasoline is different: ethanol gasoline, as a vehicle fuel, can save petroleum resources, reduce air pollution from automobile exhaust, and promote agricultural production. Gasoline exhaust can pollute the environment.

Precautions for using ethanol gasoline in automobiles

Ethanol gasoline is mixed with a certain amount of denatured fuel ethanol, ethanol is a hydrophilic liquid, easy to misc with water, unlike gasoline, gasoline can be separated from water, and the water is deposited at the bottom of the tank.

Therefore, when the vehicle uses ethanol gasoline for the first time, it should be inspected in the fuel tank to prevent the ethanol gasoline from miscible with the sedimented water that may exist at the bottom of the fuel tank, so that the water in the oil exceeds the standard and affects the normal operation of the engine. The fuel system of the car should be cleaned before using ethanol gasoline.

Ordinary gasoline does not have ethanol. Whether it is ethanol gasoline or not needs to look at the first letter of the number. Ethanol gasoline is marked with the letter E before the label, for example, E92 gasoline is ethanol gasoline, and pure gasoline is directly marked with 95 oil.

Gasoline is usually unleaded gasoline (containing trace amounts of lead), while ethanol gasoline refers to the addition of a certain proportion of fuel ethanol (commonly known as alcohol) to ordinary unleaded gasoline, and in China, this proportion is 10%.

In layman's terms, it is to add 10% biofuel ethanol to gasoline. Vehicles using ethanol gasoline can be added with unleaded gasoline of the same label.

Similarly, the qualified unleaded gasoline for vehicles can also be added to the vehicle ethanol gasoline of the same number at the designated gas station**. However, you should choose a gas station such as PetroChina and Sinopec that can ensure the quality of refueling. Avoid adding water-containing unleaded gasoline and counterfeit and shoddy oil products, so that the vehicle can not maintain normal operation.

Precautions for adding ethanol gasoline for more than 30,000 kilometers of Jianxin cars, when adding ethanol gasoline for the first time, if the car fuel tank and oil circuit are not cleaned, it is easy to cause the car oil circuit to be blocked and stalled. Even after cleaning, there are still a small amount of impurities entering the fuel tank, and after the first tank of oil is used, the car should be inspected and cleaned. If it is a new car with a mileage of less than 30,000 kilometers, there is no need to clean the fuel tank and oil circuit before adding ethanol gasoline.