Supposed to be a highly rated oil approved by all German car manufacturers and recommended for high output turbo applications with the 5w40. Figures to be about $7.25/liter when bought in 5 liter jug. Right now I'm doing 3k oil changes with 0w40 Mobil 1 and Mobil 1 oil filter and I hardly ever take advantage of S2, only go WOT for a few seconds about once every 3 weeks. May consider 5k drains, maybe? Any feedback would be appreciated.