Sure you're not Donner or Madmods boy?
Just Teasing Trimer....Mobil One is OEM Recommended, Castrol Syntec 0w-40 at Walmart if available in 5 qt jugs. is a VERY popular choice among members here.
Answers for tires are all over the place, I have had great success with Pirellis on Boxsters and on 911's I like Bridgestone tire but cheaper alternatives are out there........