Thanks for the response Maxichon.

We have sniffed the oil and can't identify any antifreeze smell yet, there is also no wiff of hot antifreeze after driving.

My wife is picking it up as I type this, and I guess we are going to drive it for a bit (I will take a more serious look at it since I never had the opportunity to look at it before she took it in the second time). The leaking is slowly getting faster and faster since it took it months before the antifreeze was noticeably low the first time, then it went down to weeks for this most recent time.

Now, we tend to keep our daily drivers until the wheels fall off to get our moneys worth out of them. So my major concern is that running this vehicle with antifreeze leaking somewhere into either the engine oil or combustion chamber is shortening the overall life of this engine.

To say I will be angry will be a monumental understatement if this engine fails shortly after the powertrain warranty expires.

I am just dumbfounded that they can't find the problem in two tries, and now they have started lying to us.

This is why GM is going to eventually fail for good, because they slowly lose families like us who would have happily kept buying their cars.