In general we assume that the main function is as a lubricant engine oil. Though oil has another function that is not less important, namely, among others, as a cooling, protection from rust, cleaning and closing the gap in the wall machine. All these functions are very closely related. As a lubricant, the oil will create friction between the components in the engine move more subtle, making it easier for machines to achieve an ideal working temperature.
In addition, the oil also acts as a? uida which transfers heat combustion chamber that reaches 1000-1600 degrees Celsius to other parts of the engine cooler. Increasing number of oil options at this time, will certainly make us a little confused, because all the oil producers would say they are the best oil. But there are some things that might be used as a reference. Among other things, identify the character of the vehicle, the spec? cation machinery and the environment where the majority of us drive (temperature, humidity, dust). Note the designation lubricants, are used for gasoline engine oil, or diesel, 2 stroke or 4 stroke, industrial equipment, etc.
. The quality of the oil itself is usually indicated by a code of API (American Petroleum Institute) with a letter followed by a stage behind him. Example API, SL, code S (Spark) is indicative of engine oil for gasoline. The second letter code indicates the value of oil quality, getting closer to the letter Z, the better quality oil in the coating components with a layer? lm and better conform to the needs of modern engines. There are two groups of API service categories are:
1. API Service Categories for gasoline-fueled vehicle lubricants 2. API Service Categories for diesel engined vehicles lubricant API SERVICE CAR ENGINE LUBRICATING gasoline - BC = can be used for all new tech car engines and previous (safe for all cars). Lubricants categorized SM is designed to provide sediment control better high temperature and is designed for more efficient use of lubricants. In some oil has met serti? cation ILSAC or casserole? cation as energy efficient - SL = for vehicle engines in 2004 and earlier - SJ = for vehicle engines 2001 and before - SH = for vehicle engines 1996 and before - SG = for vehicle engines 1993 and before - SF = for vehicle engines 1988 and earlier
- SE = for vehicle engines 1979 and before - SD = for vehicle engines 1971 and before - SC = for vehicle engines 1967 and earlier - and SA = SB is not recommended API AUTOMOBILE DIESEL ENGINE LUBRICATING SERVICE - CI-4 = Introduced on 5 September 2002, to 4T engine, high speed. Formulated to maintain engine durability. Can be used to replace the lubricant category CD, CE, CF-4, CG-4 and CH-4 - CH-4 = Introduced in 1998,
to 4T engine, high speed. Can be used to replace the lubricant category CD, CE, CF-4, and CG-4 - CG-4 = Introduced in 1995, to 4T engine, heavy loads, high speeds using a fuel with sulfur content of 0.5%. Can be used to replace the lubricant category CD, CE, and CF-4 - CF-4 = Introduced in 1990, for high speed 4T engine with exhaust gas turbo charger and regular. Can be used to replace the lubricant category CD, and CE - CF-2 = allowed for 1994, to heavy load engine 2T, Can be used to replace the lubricant category CD-II - CF = Introduced in 1994, for vehicles o? -Road, indirect-injection diesel engines and other diesel engines that use fuel with sulfur content above 0.05%. Can be used to replace the lubricant category CD - CE = Introduced in 1987, to 4T engine, high speed with turbo charger or exhaust normal. Can be used to replace the lubricant category CC, and CD - CD-II = Introduced in 1987 for the engine 2T - CD Introduced in 1955. For the engine exhaust gas turbocharger as well as usual - CC = to a machine that was introduced in 1961 - CB and CA = is not recommended.
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