Hello all! I'm having a issue with loosing coolant on my 2006 cobalt 2.2. The other day I was cleaning up the throttle body and the air intake box above it had lots of oil inside it and it looked like it was mixing with coolant. It was kinda a peanut butter color. the oil on my dipstick is a normal color, as is the oil when I do oil changes. Level stays perfect also. But having to top off coolant atleast maybe every other week. Help!??!