Hi everyone! I've got a 2011 Cruze LT, 1.4 Turbo, A/T, with 133K on the odometer. Owned (by my fiancee) since new. I've discovered a coolant leak on the passenger side; I originally thought it was the main radiator hose on that side, but on closer inspection I'm not so sure. I'm attaching pics to (hopefully) help with the description of where I believe the leak is. I'm wondering if this is an o-ring issue, or a thermostat(?) housing issue...or something else? I've busted my knuckles under the hood for 25+ years, and diagnosed/fixed quite a bit, but this is my first foray into the engine compartment of a Cruze. Please let me know if I've left any details out. Thanks for the help!

