I just got back from AZ and bought the latest batch of GC with date code M06152ATW18065 07:36. If I recall correctly, this means this bottle was made on the 152nd day of 2006 at 7:36AM. And yes, on the back, it says "Made in Germany". It also has the donut and states that it is good for MB 229.1 and MB 229.5 standards as well as VW 502.00, 505.00 and 503.01. So much for the rumors that Castol has started making GC in the U.S. and has lowered the quality of the product. I just thought some folks would want to know.