Not saying that everything is fine in the sender units area, but prior to replacing them, we could get the oil light to come on at random times. While cruzin' down the freeway, or stopped at idle, flickering sometimes... random all the way. Replaced both and they behave normally. Low oil, they come on. They stay off until the oil pressure drops to 25 lbs, then buzzer and light. I'm wondering if that, the low oil pressure, is what it's reading and reacting normally... as designed. This motor has close to 300K on it.
bob