Possible head gasket symptoms.
In my 1994 GMC Sonoma SLS vin: Z truck, I am slowly loosing coolant. I don't see any leaks though. Is it possible to have a blown head gasket, yet not loose any compression, and not get any coolant in your oil, and not blow any smoke/have a funny smell. Because I have no idea where it could be happening.
PS: I just replaced the thermostat, both hoses, and flushed the whole system.