It is said that ethanol gasoline will be popularized throughout the country. What do used friends say about ethanol gasoline?

It is rumored that ethanol gasoline will be promoted nationwide in 2020, and Henan, Shandong and other provinces will indeed promote it. With the arrival of the National Sixth B Standard, ethanol gasoline will also become a substitute for 92 # gasoline, but for car owners and friends, ethanol gasoline is not so popular and even somewhat contradictory.

The gas station is filled with E93 ethanol gasoline.

What is ethanol gasoline?

It is a new alternative energy source which is made of fuel ethanol processed from grain and various plant fibers and mixed with ordinary gasoline in a certain proportion. According to China's national standards, ethanol gasoline is a mixture of 90% ordinary gasoline and 10% fuel ethanol.

In fact, ethanol gasoline is nothing new. As early as the 1973 oil crisis, some countries promoted the use of ethanol gasoline, and ethanol gasoline has appeared in China. Because it is not loved by car owners, it has not been further promoted. Now, with the pressure of national environmental protection, ethanol gasoline will be further promoted to the whole country.

Promote ethanol gasoline

For car owners, using ethanol gasoline must face some problems. What are the disadvantages of ethanol gasoline?

Power weakening

Car owners in provinces that have already used ethanol gasoline react that the power of cars is weakened after using ethanol gasoline.

This is not the illusion of the owner. Because the evaporation temperature of ethanol is higher than that of gasoline, it affects the formation and combustion speed of mixed gas to some extent, and then affects the power output of the engine. For consumers, after using ethanol gasoline, they may feel that the acceleration will be weaker than usual after a large throttle, which is one of the main reasons for the increase in fuel consumption per 100 kilometers.

With the same displacement, ethanol gasoline has weaker power.

Moreover, in the article "Experimental Study on the Influence of Ethanol Gasoline for Vehicle on the Performance of EFI Gasoline Engine", it is mentioned that using ethanol gasoline will reduce the power output, and the power will be reduced by about 65,438+00%. For small displacement vehicles, this is no small power loss. The Force has meat, and this one has more meat.

Fuel consumption becomes high.

While the power is weakening, the owner obviously feels that ethanol gasoline can't stand burning. In the case of rising gasoline prices, higher fuel consumption naturally means higher expenses for car owners, which is one of the main reasons why many car owners are unwilling to add ethanol gasoline.

Ethanol gasoline is more expensive, but it is not flame-resistant.

The increase in fuel consumption of ethanol gasoline is mainly caused by two aspects:

The calorific value of ethanol is only 60% of that of conventional automobile gasoline. Therefore, if the car uses ethanol gasoline without any changes, according to the measured data, the fuel consumption of the engine will increase by about 5%.

As mentioned above, the power is weak, and in order to get enough power, the driver can only increase the throttle to get enough power. As we all know, if you step on the accelerator deeply, the fuel consumption will increase obviously. After using ethanol gasoline, car owners need to step on the accelerator frequently to get more fuel injection and strong power, so the fuel consumption naturally increases.

Water absorption

The biggest disadvantage of ethanol gasoline is that its shelf life is relatively short, only about one month. Otherwise, ethanol will be oxidized, and the water content will increase, which will easily lead to oil-water separation, which may cause water to enter the engine and cause engine damage.

Of course, some people say that ethanol is corrosive and can corrode rubber parts. In fact, for cars, ethanol gasoline is burned in the engine, and the engine is basically aluminum alloy or cast iron. This effect is almost zero, but don't worry.

Of course, ethanol gasoline has many shortcomings, but it also has great advantages, otherwise the country will not vigorously promote it.

It is more environmentally friendly, and it is easier for old cars to meet emission standards by adding ethanol and gasoline.

Now domestic cars have entered the national six standards, and the exhaust emission detection is more stringent. According to statistics, compared with conventional gasoline, gasoline containing 6% ethanol can reduce hydrocarbon emissions by 5%, carbon monoxide emissions by 265,438+0% ~ 28%, nitrogen oxides emissions by 7% ~ 65,438+06%, and toxic gas emissions by 9% ~ 32%.

Vehicle emission

In this way, some old cars can be replaced by ethanol gasoline, and it is easy to meet the standard when detecting exhaust emissions.

Cleaning oil circuit

Ethanol gasoline has a strong dissolving and cleaning performance, and has a certain dissolving effect on cutin, dirt, rust and so on in the oil circuit. Of course, this is only compared with 92 # gasoline, and the effect will not be too great.

Good antiknock performance and full combustion are beneficial to reduce carbon deposition.

According to statistics, gasoline containing only 10% ethanol can increase the oxygen content in gasoline by 3.5%. The increase of oxygen content can make gasoline burn more fully, and the octane number in ethanol gasoline is higher and the antiknock performance is better. Taking ordinary gasoline as an example, compared with No.92 and No.95 gasoline, the octane number of ethanol gasoline is as high as 1 10, and its antiknock performance is extremely superior.

Full combustion can reduce carbon deposition.

With the increasing pressure of environmental protection, the promotion progress of ethanol gasoline may be accelerated, but for car owners in Hunan, there is no need to worry at present. At present, ethanol gasoline has not been seen in the province.