What are the advantages and disadvantages of natural gas heavy trucks? The big names in the interactive platform say so.

After nearly two months of epidemic suppression, we finally ushered in a bright spring! In March, a questionnaire survey on the market of LNG heavy trucks, initiated by Wisdom Media and supported by SAIC Hongyan with prizes, was carried out on the interactive platform of "Old Road to Trucks" in full swing! Since the introduction of LNG trucks, there have been both praises and questions, advantages and shortcomings. So, how does LNG truck perform in practical application? How much can be said about it? Where are the weaknesses and shortcomings? In accordance with the usual practice, we will reply to the representative point of view is divided into two articles to share, listen to the natural gas heavy truck drivers, as well as the views and insights of the industry gurus.

One, compared with fuel heavy trucks, natural gas heavy trucks have what advantages? What are the shortcomings? What are the considerations in actual operation?

For the advantages of natural gas heavy trucks, almost all the netizens who responded to the post coincidentally wrote down the first answer, which is economic. Indeed, compared with fuel trucks, the biggest advantage of natural gas trucks is to save fuel costs. the price of LNG is 60-70% of the price of No. 0 diesel fuel, heavy trucks can save 70,000 or 80,000 yuan a year in operating expenses.

Secondly, 80% of netizens have mentioned that natural gas heavy trucks are more environmentally friendly, netizen Diesel?V8 replied: "The HC content, CO content, NOx content in the exhaust of natural gas-fueled vehicles have been reduced, especially the content of solid particulate matter specific to diesel vehicles, which has been reduced by almost 100%, and is able to achieve higher emission standards. " Thanks to the inherent environmental advantages, natural gas heavy trucks do not need complex after-treatment system, to a certain extent, reduce the failure rate, while no need to worry about exhaust gas sampling and monitoring.

There are also some netizens pointed out other advantages of natural gas heavy trucks, for example, netizen Chen Shoujun said can effectively avoid the problem of fuel theft; netizen Tianlu *318* feel that the driver and the vehicle is more clean and hygienic, and the maintenance is no longer greasy; netizen Mr. Wang ℡ that is not afraid of freezing in extremely cold climates is relatively easy to hit the fire.

And for the shortcomings of natural gas heavy trucks, we are also discussing a lot. We have sorted out the views focused on the following points.

1. Price problem: most users mentioned the gas car purchase cost than the gas car is expensive, from the market, the gas car price is on average 8-9 million yuan more expensive than fuel cars. However, there are also netizens will be the late operation process into account, from the perspective of the vehicle's entire life cycle to see the price. Netizen Dagang said: "Compared to diesel, the significant reduction in operating costs is the source of the owners of the heart, even if the cost of purchasing the car is higher, almost 1-2 years to earn back the difference in price." Netizen Azhi think even longer term: "Expensive 8-9 million is not a short board, the national environmental policy is updated quickly, may be new cars 4, 5 years after many cities do not let in, and natural gas trucks do not have this trouble. Changing trucks? Do not take orders? Add this 80,000 or 90,000 I am willing."

2. Vehicle weight problem: due to different vehicle structure design, natural gas trucks are generally heavier than diesel cars several hundred kilograms, most of the natural gas tractor weight on the market at the level of about 9.5 tons, the standard level of diesel cars for 8.8 tons. It is important to know that the weight of the vehicle directly affects the amount of cargo, which is also related to the user's income. However, the actual application of many realities, such as the netizen Azhi said: "On the surface although the weight of a few hundred kilograms heavier than a diesel car, but the actual difference is not great. Let's say that most diesel cars with a fuel tank how to count?" With the improvement of the level of car-making and the application of new materials, the domestic heavy trucks in the past few years has made great progress in lightweight. Take last year's SAIC Hongyan released Jie Shi C6?LNG heavy truck, for example, the chassis weight reduction of more than 700 kilograms, the vehicle weight of only 8.97 tons, almost catching up with the standard diesel heavy truck.

3. Safety: Safety always comes first in everything we do. Although natural gas is a flammable gas, but as long as the standardized operation, it is possible to guarantee safe operation. Netizen Diesel?V8 said: "LNG vaporized density is only about half of the air, the slightest leakage immediately diffuse upward, therefore, better security." In addition, the netizen Lu Q truck guy, Gust MB03, Tianya, self-sufficiency that the gas tank is set in the back of the cab, to a certain extent, affecting the cab back space, it is worth people to pay attention to.

4. Power problem: According to the past experience of the car and the feedback of the users, the netizens have said that the natural gas engine is not as explosive as the fuel engine, the gas car is not as strong as the fuel car power. And as mentioned above, the vehicle technology is constantly improving. For example, the previously mentioned Jie Shi C6, the car is equipped with LNG engine is SAIC Hongyan combined with the domestic heavy truck segments using characteristics, joint Europe and the United States famous design institutions, the standard National Six emission standards specifically developed, its low-speed start torque increased by 18%, start faster power output is also more durable.

5. Maintenance issues: Some truck users have reflected that because natural gas trucks have higher technical requirements for maintenance, after-sales service is not as convenient and fast as that of fuel trucks. However, with the country's vigorous development of clean energy in the past two years, truck companies are constantly improving the service system of natural gas heavy trucks. Impressive is SAIC Hongyan's "black gold" special line protection program, in Shanxi, Hebei, Shaanxi, Inner Mongolia, Henan and other five regions, the layout of more than 200 service network, and configure a large number of professional and technical personnel, the average service radius of 76 kilometers, to solve the user's worries.

Finally for the natural gas heavy trucks in the operation of the notes, many industry gurus gave valuable advice. Netizen Kiwi replied, "1. Keep the right economic speed to stabilize the gas consumption according to the road condition and load during driving. 2. Read the instruction manual carefully and maintain the tank regularly. 3. Don't play with cell phones and electronic products during the filling process to avoid spark detonation." Yang Fan, the more you grow up, the lonelier you are, and other netizens said: "natural gas heavy trucks should need to pay more attention to maintenance, especially valve clearance, spark plugs, about 30,000 kilometers need to be adjusted, but also often check the gas tank safety valve action is reliable, the process of driving to slow down on the accelerator pedal, speeding up can not be too impetuous." ?

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This article comes from the author of the automobile home car family number, does not represent the views of the automobile home position.