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      11-24-2010, 10:24 AM   #2
sameh
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Drives: 2015 Porsche 911S
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Quote:
Originally Posted by gr8000 View Post
other than trusting them or being there watching?

Any way to check this?

This engine doesn't have a dipstick to see the colour of the oil immediately afte the change....
good question. hearing some bad dealer experiences made me think this way as well. sad but true
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