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recently my car has been knocking. Could it be becuase i put 20w 50 oil in it ?? Thats the only think i can think of thats making it do it. any ideas ?
if you cant diagnose knocking sounds drive it to a shop. have them tell you whats wrong with it. if you think you can fix it go ahead and do it now. but if you keep driving your car itl probebly just progressivly get worse.