Several months ago, I had the radiator flushed, and replaced the thermostat myself. There does not appear to be any leakage of coolant around the thermostat housing, though I need to check more closely. The coolant is collecting (in drops) on and around the petcock, I can see that the actual radiator fins in that lower corner look moist as if fluid had dripped down it.
Any suggestions of what may be the issue? I have no idea how I could lose a decent amount of coolant (say a liter or so from the overflow bottle) and not notice puddles under the Jeep. The Jeep has been in the garage, been driven daily the past few months, and there's no evidence of a major leak on the floor.
I am guessing that it must be leaking when I am driving, but don't know why. I have a feeling that a new radiator may be in order, but would like to narrow down the problem.
A possible culprit is the water pump, though that typically means coolant leaking down to the front of the oilpan and dripping from there. Not the case.
I checked all of the tubes going into the radiator, and all are tight and dry. The radiator itself is topped off with fluid, just the reservoir/overflow bottle that is low.
Probably going to order one online to have ready for me to install when I get home for break. I'll keep it in mind though.