Currently, no coolant is leaking to the oil. I have checked and the oil color is normal, not milk chocolate. Just got back from a 1700 mile road trip and my coolant is back below the 'low' fill line. Before I left, I filled the coolant tank up. Do you guys think a coolant hose has a leak somewhere? Also, yesterday it took 10-15 minutes for my heater to start working. It sounded like the heater ed it don't turn on for 7 minutes than within 3 minutes hot air blasted out. I heard coolant and the heater work together, I do not know how LOL.