Guys. I've now switched to GC for my BMW. I changed over last month before storing car. My question is about cold temp. viscosity. I read one post here that it is thicker than a 5w30 at most temps. So if it's -22 C (-10 F) to 0 C (32 F), a 5w30 is better than a 0w30 because a 0w30's advantage is in extreme cold (Artic like tempertures.) How thick is it? I always thought that all 0w30 oils had better normal cold starting flow than 5w30 oils. On a side note, I just saw the new 5w40 Bottles of Syntec which states on the back: European Formula now Blended in The USA. Will it be the same for the 0w30? If so, then everyone will be stocking up on the gold. PS. I've built up a little stash of 22 bottles of the green.