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    Mobil 1 0W-40, 2010 Porsche Cayman S, unk. oil age

    Hi everyone, First time poster who would really appreciate your expertise, which will hopefully alleviate some of my concerns. I bought my Cayman w/ 11K miles. I don't know the service history. I drove it for 2K miles, around 150 of which were track miles (one day). I then changed the oil (at...