Seems to work in my wife's CRV running M1 5W-30 EP, but still running short OCI as all her driving is local. My theory is that the 0W-20, especially when thinned below grade by dilution, Is pushed past the rings due to the Pressurized intake and high pressure injection, the low-tension rings don't help ether. Interestingly, my 2019 Civic Touring Coupe, using M1 0W-20 AFE and 5k change intervals literally had 0 issues, UOA's were excellent. Some around town, but a fair amount of highway, 40K when I traded it in. Haven't decided if I will run 0W-20 or 0W-30. It's fairly obvious, as much as I like the way the Civic 1.5T runs, I am most likely going to get 5K max between changes. There isn't a magic oil, a higher base viscosity helps, but just something you need to be aware of and monitor.Is it possible that a heavier-weight oil could mitigate fuel dilution by creating a better seal between piston rings and cylinder walls? Can’t think of another reason this would make things better.