Does Nissan specify a 20 grade for this car/engine? The report looks great to me, even with the slight fuel dilution. What kind of air filter are you using? Silicon is very low, especially compared to the universal averages.
I'm interested in your 'current' oil on the Sentra - 0W-10 RP! Would love to see a report of that, and impressions of how the car ran on it - would be interesting to compare to the 'Bruceblend' experiment of Gary Allen!
There is a reason that Nissan does not specify 20 wt. oil for the QR. And I think you well know that this engine is probably one of the worst Nissan has ever designed. Not a flame..just simple truth.
Going to a 10 wt takes you in the vicinity of 5 cSt. at full engine operating temp vs. 10 cSt. for a 30 wt. oil. On a hot summer day a 30 wt. can be down to 6 cSt. or so and your 10 wt. will be down to 3 or 4 maximum.
I applaud your spirit. But I know when I dumped 20 wt. into the SR20DE mileage did not improve. I think you will be grinding this engine up with 10 wt. Just an opinion though.