By definition a 0w20 is going to use better base stocks and less VI improvers especially considering it is highly likely to be synthetic in form. You are basically throwing whatever oil is around in it considering Supertech was on the menu. While Supertech isn't a horrible oil I wouldn't use it in a DI Turboed anything unless I was desperate or it actually had approval.
The K20 in this is way different the K20 in Accords of the past. There is absolutely proof 0w20 is better for the engine but you don't seem to care so I'll stop there. Like I said once you installed a catch can you were your own warranty.