Car oil is the blood that sustains the life of the engine. It is the component that can cool and lubricate the engine. Nowadays, more and more owners have realized the importance of oil, but little is known about the correct use of oil. 1. When to change the oil People often say: The car should change oil regularly. But in the end, how often does it change? Basically, every car's manual will be clearly written. The past standard was every 5,000 kilometers, but in recent years, automakers have continued to develop research and hope that the engine's construction can be improved and the time needed for regular maintenance and replacement of oil can be extended. Therefore, many new cars in the general driving situation, if you use synthetic oil, you can basically change the oil every 10,000 kilometers, and some can even drag 20,000 kilometers. Auto maintenance professionals believe that "general driving" refers to the fact that they often travel on highways and rarely stop and walk. However, if you are driving in a city, you have traffic lights everywhere, and traffic jams, and most of the trips are no more than a dozen kilometers. This kind of driving method is "destructive driving." In the "depleting driving" situation, the engine wear is relatively large, and the requirements for oil are also relatively high. Therefore, it is recommended to shorten the interval between oil changes to effectively protect the engine. Tip: At ordinary times, it is difficult for us to determine whether the oil is changed by the naked eye or touch, but after long-term use, the engine oil will accumulate a lot of impurities. If the new oil is not replaced in time, these impurities will wear out the engine for a long time and shorten the car. Life expectancy. 2, how to choose how to choose oil Choosing good oil can make the car more durable and more motivated. Good engine oils, especially fully synthetic ones, can save on gasoline costs in addition to protecting the engine and reducing the number of oil changes. Therefore, it is twice as expensive as regular oil and is the best choice for many car owners. Optional oil note four elements Under normal circumstances, the following four elements must be taken into consideration when selecting motor oil: a. The choice of engine oil should be selected according to the requirements of the engine. It is not necessary to use too high-grade engine oil on lower-required engines, nor to use lower-grade engine oil on higher-demand engines. b. Multi-stage oils should be selected as much as possible. Multi-stage oils have good protection effects on the engine due to savings, long life, and high efficiency. Based on the characteristics of multi-grade oils, premature blackening may occur during use, and the oil pressure is smaller than ordinary oil. c. Some domestically-made brand-name engine oils are of fairly good quality, and the prices are lower than those of similar imported products, and they can be used with confidence. There is no need to blindly pursue "youyang oil." d. If the engine is in good condition and the seasonal temperature is low, use less viscous engine oil as far as possible so that the oil path is open. For example, in high temperature season or severe engine wear conditions, the use of high viscosity oil is conducive to the formation of oil film and reduce engine wear. Tip: There are hundreds of oil brands on the market, and the oil with a better grade will be more expensive, but the protection of engine parts will be better. 3, the amount of oil should be slightly lower than the scale on the oil dipstick As we all know, oil is very important for the engine's movement, because it shoulders two major functions of lubrication and heat dissipation. Therefore, at any time, engine oil must never be lacking. However, the excessive addition (exceeding the upper limit of the scale) has a very bad result. Too much oil will increase the crankshaft's resistance to rotation and reduce the engine's output power, and those excessive oil will enter the combustion chamber to participate in the combustion, causing the vehicle to burn oil, emit blue smoke, and even increase fuel consumption. Residues of oil after combustion (which are mainly carbon, very hard) will accumulate on the walls of the combustion chamber, reducing the combustion chamber space, thereby reducing the compression ratio of the engine. At the same time, it will also accelerate the wear of the cylinder and the piston and thus reduce the vehicle's Service life. When adding lubricating oil, it must be kept slightly lower than the scale on the oil dipstick. In addition to grasping the oil model, season, climate, engine displacement, technical performance and many other factors. Therefore, it is best to choose a professional car care center, after careful judgment of the car, select the appropriate oil, and carefully operate in the maintenance process to prevent hidden troubles. Of course, the general car care center will not increase the maintenance of oil (cost control), but if it is the oil you bring yourself, the car care center will not be too concerned about, then you have to pay attention to not add more oil. Tip: Adding more oil is an erroneous operation. If more oil is found, it is best to ask the car care center to let it go.
Cooling capacity:130kW-2500kW.
♦ Channel Steel base.
Geothermal Heat Pump Geothermal Heat Pump,Geothermal Heat Pump Air Conditioner,Heating Geothermal Heat Pump,Custom Geothermal Heat Pump Jinan Amrta Air Conditioning Co.,Ltd , http://www.amrtaac.com
Characteristics:
1.Reusable. Using solar energy stored in earth as cooling & heating source.
2.Great environmental and economic benefit, No boiler or cooling tower; less space, less CO2 and less initial investment.
3.Acting as multi-function unit. Such as cooling, heating, sanitary hot water separately or simultaneously.
4.Wide application as hotel, apartment, villa, factory, shopping center, office building, school, etc.
5.Semi-hermetic screw compressor for mod.130 to 2500. Each compressor is equipped with a crankcase heater and a thermal overload cut-out; the screw compressor is also complete with a built-in electronic protection with temperature sensor located directly in the motor winding and on the discharge line.
6.The refrigerant circuit is complete with sight glass, filter drier, high and low pressure gauges, solenoid valve, direct expansion valve, high and low pressure switch.
7.Shell and tube dry expansion type condenser, factory insulated with flexible close cell material. Shell and tube type evaporator, factory insulated with flexible close cell material.
8.The electric panel consists of compressor breaker, compressor contactor, phase sequence relay, control circuit breaker, microprocessor control with function display.
9.LCD display, touch screen control panel as standard. Automatic operation dramatically reducing maintenance cost thanks to reliable microprocessor system.
10.For the units with semi-hermetic screw compressor, an infinitely variable capacity control system that is capable of exactly matching the demand requirement of the system is to be supplied. This system is to provide precise and stable control of supply water temperature over the complete range of operating conditions.
11.OPTIONAL
♦ Electronic expansion valve.
♦ Desuperheater as optional.
♦ Electronic controller with BMS system.
♦ Low noise compressor cabinet or outside full cover
Analysis of Vehicle Oil Change Precautions