Engine Oil

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The engine oil must assume some of the tasks, not only lubricate. At low temperatures, it must be flowing enough to distribute as soon as possible in the engine. At high temperatures it must maintain a constant lubricating film. But not only the lubrication is one of the tasks of engine oil. It has a cooling effect on those parts of the motor, which develop much heat and not served by the normal cooling circuit, as this is the case for example with the piston at the same time. That’s not all: Engine oil ensures a fine sealing in the particularly sensitive areas, between the sliding surfaces of the cylinder and the piston rings and protects against corrosion of all internal metal parts of the engine. Engine oil is responsible also for optimal cleaning of the engine soot particles and other combustion residues are also recorded and suspended solids countered as any kind of metal particles.

Hardly a modern motor oil comes without so-called additives in the Trade, which improve the lubrication properties of the oil by adding chemical additives. The more of these additives in a motor oil are included, is the quality which is reflected in higher prices in daily practice. Mineral oils from commercially available crude oil almost always the basis for engine oils. This mineral oils can be with relative low cost, by the petroleum is distilled and refined. The situation is different with synthetic oils, who otherwise believe as many also produced oil, but a more sophisticated manufacturing processes run through (the so-called synthesis), which changes the molecular structure of the oil and at the same time transformed it into a multigrade oil. This is possible with a mineral oil only by appropriate additions, which the viscosity – oil change the viscosity so. Modern synthetic oils are clearly superior to normal mineral oils in many areas and just the so-called light running oils, which are also usually made on synthesis, often even for a reduced fuel consumption, as through their use the mechanical friction in the motor can be reduced. Birgit Jaschke