Due to the special nature of turbocharged engines, audi a6 turbocharger decided that they have very stringent requirements on oil use. This is mainly to prevent poor quality of oil, impurities and excessive damage to the machine.
In use, the need to frequently check the turbocharger seal ring is sealed. If the sealing ring is not sealed, the exhaust gas will enter the engine lubricating system via a sealing ring, dirty motor oil, and the rapid increase in crankcase pressure. In addition, the engine oil will be discharged through the low speed sealing ring from the exhaust pipe or into the combustion chamber, resulting in excessive consumption of oil produced circumstances "burn oil".
On maintenance, be sure to pay attention to the choice of oil. Due to the action of the turbocharger, the air entering the combustion chamber has greatly improved the quality and volume of the engine more compact, more rational, the higher the compression ratio, the higher the engine so that the intensity of work, but also makes precision machining high assembly technology require more stringent. All of these have decided the high-temperature, high-speed, high-power, high torque, low-emission characteristics of work turbocharged engine, but also determines the internal parts of the engine to withstand higher temperatures and greater impact, extrusion working conditions. Therefore, in the selection of turbocharged sedan car when the engine oil, it is necessary to take into account the special nature of the oil used must wear resistance, high temperature, high film strength and good stability, GT1752 Turbo synthetic oil or semi-synthetic engine oil can meet this requirement. So, the best oil to use in addition to the original provisions of the oil, but also can use synthetic oil, semi-synthetic engine oil of high quality lubricants.
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http://www.croccworld.it/jamendo/2014/09/24/ford-ecoboost-gtdi-engine-using-cylinder-turbocharger/
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