I see that this is a common problem. My coolant started to disappear slowly
with no obvious puddles. I topped of the expansion tank in the AM and in the afternoon, I lost enough to start putting on the coolant idiot light.
Finally a found some antifreeze around the bottom of the radiator/ passenger side.
Any hints? I'm not used to slow SLOW leaks like this with the coolant system.

Should I consider stop leak if it is a slow leak with the radiator.
My sense is that Stop Leak products are snake oil.
what else to check out? Maybe tighten the clamps on the radiator hoses?
The leak is very slow.

I did a water pump last fall with the timing belt, but don't think that's the culprit.

Bill