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61 pages! I just did an oil change with Castrol Edge 0W40 with the Porsche A40 spec on the back. It said it was made in Germany on the back of the bottle. That's GC, right? I got the good stuff? Is there some talk that Castrol either isn't going to make it anymore or won't sell it in America...

2016 Porsche Cayman. Thanks everyone for your advice. I feel better.

First, hi and thanks for your thoughts in advance. I bought a new car and it was time for its first oil change. It's one of those fancy new cars that doesn't have an actual dipstick - just an electronic oil level gauge on the dash that only works once the oil is hot. So I drained the oil and...