In the last 8 months or 9,000 miles ago I had to add about three quarts of coolant and then just last week I had to do the same thing, add about 3 quarts. I don't see any cooland leaking on the street, but read that if the engine overheated possbily I could have damaged the head and coolant is being lost there. I've had numerous oil changes and no coolant or water seems to be getting mixed with the oil. Maybe there is a pin leak somewhere, any suggestions on finding the cause
