Royal purple - oil analysis results

[Philipp]

Just got my oil analysis report on my third oil change.

Notes:
- Ran original Nissan oil for about 1900km (1200 miles);
- Change for REGULAR dyno oil and new Nissan filter (done by dealer which wasn't very keen on putting that oil into the Z...);
- 2800 thru 7000km on Royal Purple 5w30 & K&N filter (1 lapping event);
- 7000 thru 12000km (5k miles thru 8k miles range) on RP 5w30 & new K&N filter (with 2 lapping events). Added less than 1/2 oil quart over that timeframe.

Question:
Does anyone have a clue what causes the magnesium level to be so high???