Question about 1995 Buick Skylark

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Why is car losing oil pressurewhen driving it

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As your engine warms up the engine oil gets thinner. when your engine is cold your oil is thicker and able to make higher pressure. As your engine warms up the oil gets thinner and pressure drops. This is caused by wear and excess clearances in the engine oil pump and bearings. You can prolong the use of your current engine with a thicker engine oil, but eventually you will be looking at a rebuild or replacement.

Posted on Apr 22, 2013

Testimonial: "could my oil sending unit be bad or the oil pump there are no oil leaks anywhere but i think thermostat is bad this started after the engine over heated i am going to replace the thermostat do you think that will help the oil pressure and what kind oil should i get"

  • cheryl Apr 22, 2013

    i am a 56 year old woman trying to help my 57 yr old friend keep her car going till she can get another one she just went back to work been unemployed for almost year and just got job 2 weeks ago and my car cant take the hauling her back and forth to work so i am trying to fix hers

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