What Is Engine Oil

The difference between mineral oil and synthetic oil for more advanced engines, (turbocharger), because of its long-term operation must be at elevated temperature and pressure, so it should pay special attention to the oil quality thermal stability effect, in order to avoid high temperatures circumstances arising under the operation of oil deterioration or cracking of the film, in addition to the effectiveness of clean oil project is also an important consideration, in the case of engine operation, are subject to external impurities in the air, water, gas and oil oxidation within itself, the plot carbon and other pollutants, this is the reason the oil life impairment. Additives provide proper protection within the oil; high-performance cars should use high quality oil oil must provide excellent cleanliness and dispersion, to ensure completely clean engine and turbocharger to provide the necessary bearing and lubrication to reduce wear prevent jamming. Engine oil but penetrate the base oils extracted from various additives. Oil in operation constantly subjected to various pollution, therefore additive that is constantly consumed. At a certain period of time and so on, it can not provide adequate lubrication parts to maintain the normal operation of engine performance. (Replace the timing should consider mileage) the general characteristics of synthetic oil drain intervals having optimum durability of the vehicle shall be used to determine the actual engine condition, such as urban stop and go, the driver suddenly accelerated and other factors, basic to say about synthetic oils drain intervals can reach 10,000 kilometers, while mineral oil only to between 5,000 to 10,000 km shall be replaced. But if this argument is valid, then open less than 10,000 kilometers a year away several owners, it is not it will not have to replace the oil it? In fact, this concept may not be absolutely correct. As mentioned above, the oil in the engine contamination of the situation as much as the real running wear additives, even if you are miles with very little oil should be replaced once every six months in order to maintain the good characteristics of the oil. VI rheological properties of synthetic oil generally have higher VI (viscosity index) on the requirements of low-temperature fluidity, and can reduce the viscosity resistance to increase fuel efficiency. Also full synthetic oil film thickness is greater than the mineral oil is formed, it can significantly reduce the losses caused by friction. The following relationship is obtained volatile performance fully synthetic motor oil <semi-synthetic oil <mineral oils by the Noack and Gc test. Due to volatility and fuel consumption has a great relationship, each 1% increase in fuel consumption of volatile and has a great relationship, each 1% increase in volatility, an increase of 3% fuel consumption, so far are listed in the volatile CCMC and API the standard requirements, such as CCMC G5 volatility of ≦ 13%, 15W40 API SH volatility of ≦ 15%. Oxidative stability by the actual tests, synthetic oils also exhibit relatively excellent oxidation stability of mineral oil. On behalf of the merits of the oxidation stability of the oil to make a life span, it has a more general synthetic mineral oil 2 to 3 times longer life. The difference between synthetic and mineral oil must own experience I discovered that the owner of the development of synthetic oil from the ships during World War II reason, due to a shortage of supply of crude oil as it has been conceived by chemical synthesis lubricants, to replace the traditional use of mineral oil ʱ?? Semi-synthetic oil itself has two kinds of synthetic and fully synthetic; Basically, semi-synthetic oil is added by the mineral base oil part of the proportion of fully synthetic base oils made. As synthetic base oils are synthetic base oils made from one hundred percent. Therefore, compared to conventional synthetic mineral oil, whether made in or have significantly different chemical structure. Basically synthetic polymer chemistry monomers is made via a chemical reaction, in accordance with the chemical composition can be divided into the following seven categories: synthetic hydrocarbons. Carbonate resin. Phosphate esters. Silicone oil. CFC acid. Poly-fluorinated alkyl ether. Polyethylene glycol. Conventional mineral oils is based on the traditional mineral oil after crude distillation, hydrotreating processes such as refining. To distinguish a quality of the oil, the oil can not be distinguished from the appearance of what is directly different, and to be the physical manifestation of its properties in order to determine differences in the quality of this oil.