in my 2017 Accord sport se (non turbo) I run Mobil 1 0W40. I started out with various 5w20’s and after uoa with shear and mostly fuel dilution it was borderline W16. I bumped up to 5W30 based off of others recommendations
Wanted to try 0W40 as I’ve heard a lot of good things about it. It is a thin 40 grade or thicker 30 however you want to look at it. I’m 4K in to my oci, will sample and send it in in a few thousand more miles