1 dầu có hạn sử dụng, một thời gian dài sẽ làm giảm hiệu suất, dẫn đến hao mòn nhanh chóng của các bộ phận cơ khí.
2 Khi dầu được vận hành ở nhiệt độ cao trong động cơ, tính chất vật lý và hóa học của nó sẽ thay đổi, and the mechanical properties will change.
3 Then the engine runs for a long time, the impurities in the oil will increase, which will increase the wear rate of the mechanical parts.
What are the serious consequences of not changing the oil on time?
1 Failure to change the oil on time will cause the oil pressure to be too low. The most direct consequence of low oil pressure is that it will cause semi-dry friction or dry friction between the various components. The engine will have obvious abnormal noise, and in severe cases, it will cause burning.
Failure to change the oil on time will result in the following problems that cause oil pressure to drop:
The oil storage is too small, resulting in no lubrication or less oil in the lubrication system;
Dirty or viscous oil can cause the oil pump to effectively inhale and pump oil.
If the oil is thin or the engine oil is thin due to high engine temperature, it will leak from the friction gap of the engine.
2 Failure to change the oil on time will also cause excessive oil pressure. Excessive oil pressure can cause premature failure of the fuel filter and cause carbon deposits in the engine cylinder. It also reduces the life of the engine.
Failure to change the oil on time will result in the following problems that cause oil pressure to rise:
The oil viscosity is too large (such as winter oil is not replaced in summer oil);
Oil deterioration and gelation result in reduced oil fluidity;
The filter or oil passage is clogged.
3 Failure to change the oil on time will also cause excessive sludge. The sludge is generally caused by the high-pressure unburned gas, acid, moisture, sulfur and nitrogen oxides in the combustion chamber entering the crankcase oil through the gap between the piston ring and the cylinder wall, and then mixed with the metal powder generated by the wear of the parts. Together, slowly accumulate, and then formed a sludge.
Failure to change the oil on time will result in an increase in sludge, which in turn will cause the filter and oil holes to become clogged, resulting in engine lubrication difficulties and increased engine wear.
4 do not change the oil on time, the most serious consequence is the wear of various mechanical parts of the engine, such as pistons and cylinders. Once there is a problem with the piston and cylinder, the machine needs to be overhauled, and overhaul is something that every owner does not want to see.
Lack of oil, too much sludge in the oil, and the performance of the oil will cause serious wear of the cylinder and piston. If you do not change the oil in time, then these problems will basically appear, so it is very necessary to change the oil on time.
5 Failure to change the oil on time will result in high water temperature. As mentioned above, failure to change the oil on time will result in too little oil storage, resulting in no lubrication or less oil in the lubrication system. At this time, the mechanical components of the engine will be in a semi-dry friction or dry friction state.
Semi-dry friction or dry friction conditions generate a large amount of heat, causing the water temperature to rise sharply.
If the water temperature is too high, the cylinder head and cylinder block will be deformed or even damaged. If such a fault occurs, the machine will not be far from overhaul.
Remind two points:
1 When changing the oil, you must change the oil filter at the same time. Don’t be tempted to save trouble, save money and neglect to replace the oil filter. Why is this?
Because the dirt in the filter of the old machine will destroy the quality of the new oil, the service life of the new oil will be reduced.
2 in the fall must remember to replace the winter oil, in the spring must be replaced with summer oil, unless your oil is the four seasons universal engine oil.
Because the oil in winter is slightly thinner, in the summer, the oil in the winter will be thinner, which is not conducive to the formation of oil film, and will also aggravate the wear of mechanical parts.
In the summer, the oil will be more viscous after the winter, which is not conducive to the flow of oil, which will lead to excessive carbon deposit in the engine cylinder, which will aggravate the wear of mechanical parts.
