I've been noticing disappearing coolant lately. There seems to be no difference in the oil color/viscosity/smell/level. But there is an odd brownish-red tint to the oil cap(possibly synthetic oil or dyes in the gas?) and there's a bee's wax substance on the coolant cap. I took some pictures earlier:

http://imgur.com/a/kQseO

Do I have to replace the LIM gasket along with the UIM gasket? What parts will I need for both jobs? Also, I might install the HV3 insert while im in there...