The oil filter in your car is used to differentiate the dirt from the engine oil which keeps the components lubricated. A faulty oil filter results in reduced performance, less oil pressure, metallic sounds, overheated engine and strained exhaust fumes. Watch these slides to know more about the basic symptoms of a clogged or leaking oil filter in the car.
http://www.slideboom.com/presentations/2181423/What-are-the-Basic-Symptoms-of-Clogged-or-Leaked-Oil-Filter-in-Car