Girlfriend (soon to be fiance) just moved down here from Indiana, so I'll be taking care of maintenance on her 2018 Civic LX Hatchback 6-speed (1.5T). She's had the car since buying new last fall and it has around 16,000 miles now. Up until this point, she's been going to the dealership up there for oil changes. No idea what they've been putting in it. I am aware of the fuel dilution issues with this engine, and, if it was my car and it wasn't under warranty, I might just put Pennzoil Platinum 10W-30 in it. Last time someone checked that oil a few years ago, it was 4.7% NOACK, which is one of the best NOACK ratings of ANY oil, regardless of price. That's what I ran in my 2016 WRX (also a TGDI engine), despite the fact that it called for a 5W-30. But it didn't bother me because, hey, still a 30W oil. But it's not my car, and it's a 5-year, unlimited-mileage powertrain warranty (Honda upped it from 5/60 due to the fuel dilution problems). So, I think, while it's under warranty, I'll stick with a 0W-20 that's commonly available at Walmart, and probably an OEM Honda filter, and keep all the receipts. A couple of the oils I have in mind are M1 0W-20, which I understand is a very good oil with significant PAO content, and PPPP 0W-20. I have not compared specs between those 2. Any others I should consider?