Hello, I have 94 honda civic. The Oil pressure indicator light would sporadically blink at times. I changed the oil to the recommended weight 5w-30. The light didn't show for a day or so and then it was blinking on and off again. I checked the level and it was normal. I drained a bit and added "restore Engine Restorer & Lubricant". Now the Oil pressure light is always on. Did I make a mistake in adding that? When the car is idling it sounds fine . A bit more RPM and there is a slight rattle. Is that bad bearing(s). I am afraid to drive it now. Any thoughts as to what the problem is? Thank you. John