Oil change interval
I know this has been discussed before, but thought I would refresh the topic. I had my first oil change at an independant Porsche shop since I bought my 99. They insisted that it had to be done at 3,000-5,000 intervals regardless of what others and the manual say (I'm sure they love doing $200 oil changes). They used Mobile 1 10W-30. I'm in AZ, so maybe that's a factor with the temperatures here? I've heard everything from 3,000 to 15,000. Someone set me straight!
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