One of the most important component of the performance of a machine is lubricating oil or grease. Lubricating oil serves to reduce the occurrence of friction between the components that can cause damage to the machine. In addition, the lubricating oil also functions as a lubricant path for those components.
At the time machine works, recurring friction between engine components. This is what can cause wear and tear or damage to the surface of the component. Well, this is the lubricating oil which then serves to make the surface between the components to be slippery, so that direct friction between the components of the machine can be prevented. The amount of friction can cause the machine to jam or overheat causing damage to the cylinder, piston, valve, ball bearing and other irregularities such as oil pumps, oil leakage channels, and could also be because of incorrect use of type of oil itself.
The process of combustion in the kitchen runway so the machine can cause oxidation and corrosion crust present on the metal. Here, the oil serves to clean engine parts from oxidation and prevent rust on the machine. Based on raw materials, there are three types of oil circulating in the market, namely mineral, semi synthetic, and synthetic. Mineral oil, the material is essentially oil, which is processed into lubricating oils. If then the processed results coupled with other synthetic materials to achieve a better quality standards, then the product is called semi-synthetic lubricants.
Higher quality oil called synthetic. Synthetic oil is used mostly for vehicles that are often driven with a high enough speed such as racing. And of course, the price of synthetic oil is more expensive than the price of mineral oil. Viscosity oil (viscosity), the default is classified based on the level of consistency. In containers of oil, commonly found code letters and numbers that show it. For example SAE 40, SAE 50, SAE 90, and so on. SAE stands for Society of Automotive Engineers or the Association of Automotive Engineers, which sets the standard viscosity at a temperature of 100 oC. SAE figures behind the letter indicates the level of consistency.
Code numbers such as multi-grade 10W-50 is a viscosity which can change according to temperature in the vicinity. W letter behind the number 10 stands for Winter (winter). So lube it means to have an equivalent level of viscosity SAE 10 (in the cold), but when the hot air viscosity equal to SAE 50.
From here, the oil was not only serves merely lubricate the surface of engine components. But it could also serve as a coolant as well as cleaning dirt
