I really like to use Motul 300v as I used it before for my race Subaru STI. However, it is expensive and difficult to get. I had 3 choice to pick, Redline 30 or 40WT oil, Amsoil Dominator 10w-30 or Valvoline VR1 full synthetic. Valvoline is the cheapest of all. Not sure how it compare to other...