For normal operation of the power unit to the car after a certain period of time to make washing the lubrication system and replacement of motor oil. In order to perform flushing the lubrication system must first warm the engine. After the engine warms up to turn it off and used oil to drain without removing the oil filter through a special drain plug. Then filled with flushing oil to the lower level (the lower mark on the dipstick). The engine will need to re-start and leave work for 20-25 minutes at low speed (800-1000 rpm) crankshaft. After these steps, flushing oil is completely drained and removed the contaminated oil filter. After the flushing oil is completely drained to install a new oil filter, screw in place drain plug and fill with fresh oil that meets this season. The neck has a lid. In the event that monitoring devices fully operable car and the engine flooded exactly what oil you want, and the pressure is still high, it is a sign of a malfunction of the pressure reducing valve. The valve may not perform its functions due to jamming, too tight or too big spring pollution system channels grease. Often the failure of the lubrication system is incorrect readings, which control oil pressure. In the event that the oil quality and its level in the engine is not in doubt, and the rate of pressure in the system still is below the norms, then you should check how regularly work Testing Equipment - pilot lamp, indicator and oil pressure sensor. Check them out is not so difficult. To do this, instead of checked devices connected and tested 100% working order. If the new devices show that the pressure is normal, then install on the old place is no longer necessary. You just need to replace.