Well, I found an awesome deal on 0W-40 Mibil 1 Synthetic for $2.99quart. I bought $100 worth cause I knew I wasn't going to find another deal like this if I tried. I'm currently using Lubro Moly Voll-Synthese and I only have 6000 miles on the engine. Do you guys think it'll be okay to change to Mobil 1 from this other oil? Can you offer an advice on hwo to do it properly? I did a search and All that I've gathered so far is that a lot of people don't care too muck for M1 0w-40 because the vicosity breaks down to Ow-30. Then the same people recommend some kind of OW-30/Ow-40 that's a higher grade or something that's probably only available in Podunk, Nowhere for $10/quart. No thanks. I understand Mobil is a IV grade oil, whatever that means. I asked the dealer what they recommend and he said "Synthetic!" I asked, "what kind?" He said "Synthetic! It handles the heat of your turbo better!" Okay, you're a lot of help! So, what do you guys make of all this? I drive hard and my car is going to be chipped soon, so I want good oil in my car. I will continue to change every 3-5k and never go over that.