This is the first oil analysis I've had the pleasure of reading. Back story: This O320-E2D was sitting for about 7 years with only about 10hrs use per year. Some was in a hangar, some was outside. The aircraft has been brought back to life with an extensive annual. So now the engine is being watched like a hawk. Oil changes every 10-12 hours and sending it out for analysis, cutting the filter open to check it. SMOH is 1400. This oil analysis was after it's first 10hrs of use. There was no metal in the filter. All values appear normal except the iron. Not at all unexpected, and it's what will be monitored for a trend. I would have been more surprised if it came out totally clean actually. Any thoughts one what you guys see here? What is the difference between Unit/Location Average and Universal Average?