BTW did you read the part about the cars he owns? Bottom of Motor Oil 106:

"I personally used 0W-20 Mobil 1 in the 575 Maranello and for the first oil change I drained the Murcielago’s (OEM) 5W-40 Agip and replaced it with 0W-30 Mobil 1. The engine became much quieter. A valve tappet noise disappeared. I then used the 5W-20 Red Line in the Lamborghini. Used oil analysis showed that this oil worked well for my non racetrack application. The same oil went into my Maybach 57. My Enzo Ferrari calls for the Shell Helix Ultra racing 10W-60 but I have used the Castrol Syntec European Formula 0W-30. This is different than the easy to find plain 0W-30 Syntec. It MUST say European Formula across the front of the label. I buy it at AutoZone stores but it is often mixed with the plain stuff. I am now using Renewable Lubricants Inc. (RLI) 0W-30 in the Enzo and 0W-20 RLI in the new Maybach 57s AMG."

Who is this guy?