Ditto... They did not come with Mobil 1 from the factory. And, as SCGNX mentioned, synthetic will not allow for a proper break in on a new motor. I've always used Valvoline or Castrol SAE 40 weight on the initial break in. Some people also use an SAE 30. Run it for the first 500 miles, then change it and put in Mobil 1 for the rest of its life. I've torn apart motors with lifelong synthetic and ones with lifelong conventional oils, and there's a definite difference over time. The Mobil 1 will certainly help save your turbo as well as other moving parts.