Condensate in oil fill cap

[DosGatos]

No lakes. Oil runs just over 205+-, coolant hovers at 185 unless heavy or hills. Was looking for the cause of a small coolant loss. About 3 pints in 40k miles. Found pink dust at the zone control valve, sleeper heater core inlet and a little around the radiator cap. Always hoping for the best and fearing the worst.
The level changes from time to time. Right now it looks high. Testerday was low. Thinking the system may have drawn in air overnight at a leak point. Usually the big radiator upper hose collapses overnight. This morning system was cold but hose was full. Don't carry the vacuum gizmo on the road. Will try to burp the system.