I’m planning to go to Walmart auto care Center soon for an auto oil change and I noticed they offer three different options in order of increasing price: Quaker State synthetic - full synthetic - premium synthetic. Is Quaker State sufficient for the average car’s needs or is there a reason to go with premium?
Coonsider also Walmart's house brand Super Tech. It's actually made by Warren Distribution, the same source for Costco's Kirkland oil. I've been using the latter for a few years now, seems fine, and less pricey than the mainstream brands. Here's Mr. B's exhaustive review of the later, comparing to Mobil 1. I literally fell asleep about half way through, when he got into the deep tech:
