Just took advantage of the advanced auto castrol deal. Besides the German stuff you don't hear many people talk about castrol syntec around here. I guess that could be a good thing though. I looked over at the VOA section and its seems like the 5w-40 stuff is decent with average levels of additives (well the couple VOAs suggest that). Anyone had luck with the 5w-40 flavor? I only go 5000 miles in my truck so I'm sure it will be more that adequate.