I have a 93 LC, supercharged with 140K on it. I changed the oil and used Castrol 10w-40 and a purolater filter. I am going to add a oil press guage ...but I was driving today and the oil light came on for a minute....the stock oil press guage was about 3/4 the way up like normal at driving rpm/speed, I pulled over checked the oil level...it's fine. The light is off now, but what could that mean?.....yes I'm a newb.