Does anyone know if this was ever clarified cause our car appears to have this same issue and it wasn't there last fall only when the car reaches 190` or higher. If I shut it down for 20 min and fire it back up when its cooler ,that loud tick when under throttle isn't there. Oil is good at 85% left in life.I highly doubt we're talking the same sound here Shabby. Remember, I mentioned there are two distinct sounds for me. The one you mention - I really do not care about it and I can barely make it out. I have it - and I know it is completely natural and it is there whether on throttle or idle.
The one I am concerned with is significantly louder, and happens to come on when I start applying the throttle (after the engine is warmed up) - hence I am calling it the THROTTLE TICKING, as opposed to IDLE TICKING. For example it will go away when I completely back off the gas and coast and Comes back if I get back on the throttle. You get the idea.