I have a tiny tiny leak where the adapter for the turbo coolant hose meets the thermostat housing (the left thing in the picture, obviously.) After driving there is just a bit of coolant around the base of it. I'm sure that thing is threaded, so is it likely that unscrewing it and putting some RTV on the threads then rethreading it would fix it? I would assume RTVing the threads and letting it dry before I fill the system with coolant again won't get the RTV gunk in the coolant system at all, would it? Thanks!