用天然气作燃料，运行稳、噪音低、不积炭，无需经常更换机油和火花塞，还能省50%以上的维修费用。但有市民认为，出租车油改气会影响发动机使用寿命。专业人士认为，天然气比汽油更容易挥发，因此在发动机中也更容易与空气混和，燃烧更彻底，与汽缸内其它零部件减少了磨损，一定程度上还能延长发动机使用寿命。
Using natural gas as fuel, stable running, low noise, no carbon deposit, often need to change the oil and the spark plug, also can save more than 50% of the cost of maintenance. But there are people think, taxi oil to gas will affect the service life of the engine. Professionals believe that natural gas more volatile than gasoline, so also more easily mixed with air in the engine, burn more thoroughly, with other parts inside the cylinder to reduce the wear and tear, to some extent, can prolong the service life of the engine.
以下是专家分析的汽车油改气所具有的三大效益：
Below is the expert analysis of car oil to gas has three major benefits:
1.环境效益。据初步测算，汽车使用天然气作燃料与使用汽油相比，CO减少97％，HC减少72％，NOx减少39％，CO2减少24％，SO2减少90％，导致人体呼吸道疾病及癌症的苯、铅等粉尘减少100％，噪音降低40％。
1. Environmental benefits. According to preliminary estimates, the car using natural gas as fuel compared with gasoline, 97% less CO, HC reduced by 72%, 39% less NOx, 24% less CO2, SO2 decreased by 90%, causes the human body the benzene of respiratory diseases and cancer, lead dust fell 100%, a 40% reduction in noise.
2.社会效益。天然气替代一部分燃油作为汽车燃料可优化能源消费结构，减轻对燃油市场的依赖。另外，对于缓解城市交通压力，优化居民生活环境等也具有一定意义。
2. Social benefits. Natural gas to replace part of fuel as a car fuel can optimize the structure of energy consumption, reduce reliance on fuel market. In addition, to reduce the pressure on urban traffic, optimize the environment of the residents and so on also has a certain significance.
3.经济效益。按照我省现行柴油（0号，6.24元/升）、汽油（93号6.27元/升，90号5.86元/升）价格，天然气价格按3.9元/立方米测算，出租车油改气后，每年可省燃料费约4.4万元，而公交车这一数据则为6.3万元。
3. The economic benefits. According to the current diesel in our province (0, 6.24 yuan/liter), gasoline (93, 6.27 yuan/liter, 93 # 5.86 yuan/liter) price, natural gas price by 3.9 yuan/cubic meter measuring, taxi after oil to gas, fuel can be saved about 44000 yuan a year, while the data bus is 63000 yuan.
开“油改气”汽车的驾驶员一定要进行专门培训，平时还要半个月检查一次是否漏气。天然气汽车改装后要经常检查，检查方法很简单，将空的饮料瓶注满水并加几滴洗洁精，摇晃后，涂到车的减压阀、开关、管道接头等处，看有无气泡冒出，一旦有气泡冒出，就说明该车的天然气存在泄漏，应及时修理。此外，还要注意的是，气瓶的使用寿命一般是15年。
"Oil to gas" car drivers must be specialized training, still half month check whether a leak. Natural gas vehicle modified to regularly check, inspection method is very simple, will empty bottles filled with water and add a few drops of dishwashing detergent, after shaking, apply to the car of the pressure reducing valve, switch, pipe joint, etc., to see whether bubbles, once have bubbles, means that the car's gas is leaking, should be repaired in a timely manner. Also, note that the service life of cylinder is usually 15 years.
一般通过两个栅带固定气瓶，在气瓶与栅带之间有一层胶垫，有保护气瓶的作用。一旦 胶垫有破损，气瓶将受到磨损。所以，济南汽车油改气车主应“盯紧”胶垫，一旦出现破损应及时更换，防止气瓶被破坏。出于安全考 虑，有关部门规定，汽车天然气改装的车每两年要对气瓶进行一次年检，一旦气瓶有磨损或破损，须更换新瓶后才能继续使 用。因此，在改了气的车上。
Usually by two gate with fixed cylinder, between cylinder and the grid belt with a layer of rubber mat, have a role to protect the cylinders. Once the rubber gasket is broken, the cylinder will be subject to wear. Jinan car oil to gas, therefore, the owner should be "watch" pads, once appear damaged should be replaced in a timely manner, to prevent the gas cylinders are destroyed. An for security, the relevant department, auto gas modified car every two years to a cylinder on a yearly check, once the cylinders are worn or damaged, must change the new bottle before they can continue to use. Therefore, in the changed gas car.
