I wonder why not? I use 0W20 without any problem. The drain interval is over 13000km. They're still running in the engine right now without any problem. The car become more responsive and no problem on either oil temperature and oil pressure. Why people always recommend engine oil which more viscous to hide your engine power? Nowadays, even for Mitsubishi Lancer Evolution 9, the local dealers used to change the oil of 0W20, 0W30 or 0W40 for their customer. To sum up, the viscousity is not equalty to protection as there's VI (Velocity Index) modifier to keep the visousity even when it's hot, to keep the pressure. The main point is the oil quality itself. don't mix up.