I realize that most everyone's Corvette is too new to have changed your oil yet, but for those that have and those that obviously will, what brand and type are you using? Those that have had previous generation Corvettes, what did you use in those? I realize that viscosity will vary based on your area of the continent, but regular or synthetic, brand, etc. I'm not trying to start anything, I'm just curious if anything in particular will rise above the others. I have been running Castrol Syntech full synthetic for about 8 tears in all of my vehicles. I switched from Amsoil full synthetic to the Castrol back in 2005 when I found my 2004 Toyota Spyder ran 15 degrees cooler oil temps on the Castrol (same viscosity). That's my story, what's yours?