I know that Mobil 1 EP 0W-20 is pretty popular on BITOG. I am looking around for the best 0W-20 motor oil for our 2020 Sonata. Castrol EDGE EP 0W-20 also carries an MB 229.71 approval and claims ACEA A1/B1 and ACEA C5. That in itself seems to make it a "better" motor, at least on paper. As I understand it, all that matters are the approvals and certifications that a specific motor oil carries because it's all we really have to go by. Not that this particular vehicle needs MB 229.71 approved oil, but it's nice to know that something in the crankcase went through a more stringent vetting process and has to adhere to higher and better standards. Plus, it's readily available at Walmart, unlike Mobil 1 ESP X2 0W-20. What do you guys think?