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If the oil changes haven’t been done properly in your car through the years, it may have caused oil sludge in your engine, which may have clogged any oil passage.īlockage in the oil passages can cause high pressure since the engine is deprived of proper lubrication. The recommended oil grade for your engine can be found in the owner’s manual. If you have the wrong oil grade for your car engine, you may experience a very high oil pressure because of it.
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Different oil grades have a distinct viscosity level and are meant for certain engine types. Wrong Oil GradeĮxperimenting with different oil grades can sometimes be a bad decision, especially if you don’t consult an expert. If the pressure is too high when the engine oil is hot, it is time to start worrying. Mostly twice as high as when the engine is warm or even higher.Ĭheck your pressure when your engine oil is hot instead. Many people do not realize that your engine normally have very high pressure when your engine oil is cold. Cold EngineĮngine temperature is the most common reason for high oil pressure. While these are some of the symptoms, it’s not all of them! Here is a more detailed list of the most common causes of high oil pressure. It could also be caused by a faulty relief valve in the oil pump or a damaged oil filter.
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The most common causes of high oil pressure are a cold engine, the wrong type of motor oil, or a faulty oil pressure sensor. High Oil Pressure Symptoms 7 Causes of High Oil Pressure