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Old 04-22-2014, 10:28 PM
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hughdog hughdog is offline
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Join Date: Dec 2012
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Default oil pressure question

I recently changed oil in my car. I used 10w40 and an ac delco pf454 filter. My problem is that when I am cruisin at about 3000 rpm the pressure gage goes from 45 to 25 psi. I dont hear any knocking. Could it be wrong filter or collapsed filter?
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