汽车发动机结构复杂，装配精密，电气电控部分众多，要使发动机能够长期在比较好的状况下工作，需要在使用和保养方面进行必要的注意。
Automobile engine has complex structure, divcise assembly and many electrical and electronic control parts. In order to make the engine work under good conditions for a long time, necessary attention needs to be paid to use and maintenance.
1.在冷车状态下启动发动机，需对发动机进行必要的预热，发动机在正常的工作温度下，其零件之间的运转阻力、磨损、工作稳定性等方面是X佳的，所以进行预热是必要的。
1. When starting the engine in the cold state, it is necessary to divheat the engine. Under the normal working temperature, the running resistance, wear and working stability between parts of the engine are the best, so divheating is necessary.
2.行驶中尽量让发动机转速在转速表的红刻度以下区，避免发动机X负荷运行。手动挡的车辆尽可能不要拖挡。
2. During driving, try to keep the engine speed below the red scale of the tachometer to avoid overload operation of the engine. Do not drag the vehicle with manual transmission as far as pssible.
3.使用符合规定的燃油。燃油的质量对发动机的燃烧影响很大，劣质的汽油会使燃烧室、喷油器、进气道及气门等处产生大量的积炭和积胶，使发动机出现怠速不稳、加速困难等现象。
3. Use qualified fuel. The quality of fuel has a great impact on the combustion of the engine. Poor gasoline will produce a large amount of carbon and glue in the combustion chamber, injector, inlet and valve, resulting in unstable idle speed and difficult acceleration of the engine.
4.油箱中燃油的加注量尽量保持在剩下1/3时即进行加油，以使油箱中的汽油泵良好地散热，保证汽油泵有足够长的寿命。
4. The filling amount of fuel in the fuel tank shall be kept at the remaining 1 / 3 as far as psible, so as to make the gasoline pump in the fuel tank heat well and ensure that the gasoline pump has a long enough service life.
5.在驾驶车辆的过程中，注意观察仪表上的有关指示，时常观察水温表、机油灯、充电指示灯的提示。发现有不良现象即刻处理。
5. In the process of driving the vehicle, pay attention to the relevant indications on the instrument, and often observe the prompts of water temperature gauge, oil lamp and charging indicator. If any adverse phenomenon is found, it shall be handled immediately.
6.定期保养发动机，按时按里程对发动机进行保养，选用合适的发动机机油。保持冷却液的清洁，使发动机有良好的散热性。定期对发动机的油路和气路进行清洗。保证发动机有畅通的进油、进气通道。
6. Maintain the engine regularly, maintain the engine according to mileage on time, and select appropriate engine oil. Keep the coolant clean so that the engine has good heat dissipation. Clean the oil and gas circuits of the engine regularly. Ensure that the engine has smooth oil and air inlet channels.
7.在安静的状态下启动发动机让发动机怠速和加速运行，听发动机的声音是否正常。正常发动机运行声音应该是比较低沉而有规律的，如果出现比较尖锐的声响，请立即去维修厂进行诊断，以避免故障造成更大的损坏。
7. Start the engine in a quiet state, let the engine idle and accelerate, and listen to whether the sound of the engine is normal. The sound of normal engine operation should be low and regular. If there is a sharp sound, please go to the maintenance plant for diagnosis immediately to avoid greater damage caused by the fault.
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