Originally Posted by DLSTR

3750 for hard use per the manual?? Your UOA from Blackstone said you should go 6000miles next time.

Porsche using Mobil 1 here in Germany recommends 12000km/7500miles for an oil change on a Twin Turbo. That car makes much more heat and here can be driven fast/hard depending on the owner. Id stick with the 6000mi recommendation from your post on the oil nerds thread.

I will be changing Mobil-1 5/30 again this summer here and getting my first UOA and will post it. Beyond that its a minimum of 5000miles for me with synthetic, if not more. The oils just are much better now. No need to waste money at all. Or more time changing it/visiting the dealer.