Here you go! The ultimate auto maintenance regimen when it comes to motor oil.
First 5,000 miles - Get whatever specs your car requires. Let's assume 5W-20 motor oil because my scenario will completely go up in smoke (literally) with 0W-20 and thinner oils. You'll see why next.
Second 10,000 miles - Get a 4.6 Liter V8 in a Town Car or Crown Vic. Maybe a Y2K Explorer if you're really bored. Heck buy two! It's only money after all! Transfer the oil from the new car to old cars and change them once every two years. You're probably not going to drive it all that often anyhow.
Third 5,000 miles - Get a UOA and then dump the old oil back into your new car. It's only oil after all! Summon the demons in your HOA and BITOG by being a complete SOB with the DI engine in your DD.
Get the best oil you can from the get-go. The more descriptors the better. Pennzoil Pure Ultimate High Mileage Ultra Synthetic Motor Oil is probably the best right now. But watch out for Quaker State Ultra Ultimate Magnetic Durability All-Too Synthetic T9 Motor Oil. That's a close second based on the number of vowels.