I have a new to me 2008 BMW 335I twin turbo with 42000 miles. My OC will be 5000 to 6000, So I am not worried about LL-01 or long drain times I want the best for the turbos and engine. In my market I can get Pennzoil PP, Valvoline, Castrol, Liqui Moly 4200, Royal Purple 5w-40 and Eneos 5w-30 and...