First read the bottle. If it does not meet Sunaru's spec (in terms of grade, not just viscosity) its not correct and won't meet your warranty requirements.
Second disregard opinions. They are useless.
Data matter. Nothing else. Experiences are stories; they are not data so they are more suitable for water cooler discussions than actual analysis. Data will tell you wear rates, rate of viscosity breakdown, TBN initial and final values -- actual useful information.
If its not data don't bother.