The correct method of preheating the suction truck is to cover the radiator first, open the drain valve, and continuously inject 60~70°C clean soft water into the radiator. When touching the drain valve by hand, feel hot. Close the drain valve, add 90 to 100°C clean soft water to the radiator, and crank the crankshaft so that the moving parts are properly pre-lubricated and then start again.
Do not rush to start the engine after starting. The engine that has just started has a low viscosity, a high oil viscosity, and it is difficult for the engine oil to fill the friction surface of the motor. In the event that the filling station is insufficient, the time for queueing the taxi will be very long. Taking Xi’an’s CNG taxi as an example, each vehicle needs refueling 4 times/day, 0.5 to 1 hour/time, 0.5 hours/time, at least affecting operating income of 50 yuan per day, and earning 1,500 yuan less per month than diesel cars. , And gas quality is not easy to control, there are many problems, complaints, disputes continue.
In August 2004, Shenyang City cancelled the requirement for taxis to install gas appliances. The taxis that have been updated since then are all Jetta diesel vehicles. In addition, the diesel suction truck is reliable and durable, and the failure rate is very low. It is currently impossible for any type of car to use other fuels. Finally, the current domestic gasoline and gas dual-fuel vehicle cars are actually modified, exhaust emissions have not reached the Euro III or even Euro II standards.
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