Would failure to change motor oil cause the car to misfire or not operate correctly?
2 Answers
If you went long enough between changes and the oil was super dirty you would damage the engine.
No it should not cause your car to misfire or malfunction. a misfire could be caused by multitude if issues like bad spark plugs,one of your coil packs could be bad, spark plug wires, burnt up valve, worse case it could be a burnt up piston ring. and also do a compression check to see if one of your valves are bad. that is what I would start with first is a compression check that is what I recommend hope this helps