I have another thread that shows when I started to use Redline oil (0w20) in my 2013 Accord, oil consumption was reduced significantly through the first 3000 miles. After 3000 miles, oil consumption comes up. I end up putting about half a quart in, between 3000 and 4000 miles.
What about the RL is helping reduce oil consumption initially and what happens to it after 3000 miles to start burning again? I assuming thinning out over time. Would like to find an oil with similar properties that is more readily available locally.
Do a flush with Liqui Moly Engine Flush Pro-Line, you'll find it at NAPA. Then drain it, fill it back up with a fresh filter and run it for a couple of days. It will clean up the rest of the crud. Then do a final drain and fill. I suggest you use Mobil 1 FS 0W-40, Castrol EDGE 0W-40, or Pennzoil Platinum Euro 0W-40. Your oil consumption issues should be a thing of the past by now. I run Red Line, but my concern with it is engine sequence testing. At least with AMSOIL, I believe Lubrizol does it for them and sends them the recipes and additives. Red Line does internal testing and at the track, mostly on BMWs. At least they fixed their oxidative thickening issue, that one was weird.
The reason why you see oil consumption with 0W-20 is due to wear. 0W-20 has improved a lot in API SP, especially if you get it with a few approvals and certifications like MB 229.71 and ACEA C5, however, in the years past it was kind of crap. So engines that speced it tended to have more pronounced wear. Coupled with fuel dilution and spotty maintenance... you see where I'm going with this. These days, if your vehicle specs 0W-20, then you better do your oil changes like clockwork, and if you qualify for severe maintenance, then you better follow that schedule. Or run 0W-40 and worry less about it. You may give up 1%~2% MPG (maybe), and it may take slightly longer for the oil to get up to temperature, but you also get better protection. And no, I'm not knocking 0W-20, as in API SP form it's really good. Mobil 1 ESP X2 0W-20 is awesome as well.