2004 LS Sport...220k miles...lots of maintenance by local dealership. Car started over heating yesterday. Coolant in degas bottle low. Obviously have a leak somewhere. What is in the picture is from where it is dripping. IOW, somewhere above that point. Upon further inspection, I can see a little bit of water pooled above the oil cooler. Car runs normally...Temp is at 207-210 with fluid in the degas bottle. The drip is between the oil pan and oil cooler. Here is a shot from above with a little bit of water right at the oil cooler. What is above that could be leaking? Degas, radiator, upper and lower hoses, tstat have all been changed in the past 2 years with OEM. Not sure if the tstat housing was changed. I don’t want to just rip and tear and replace things indiscriminately.