I changed the oil every time I took a oil sample being the oil had been in the engine one year that an I have an extended warranty so I have to change it out once a year. I'm not to worried about the Iron yet but I was not happy to see it show Potassium at 16 when it had been a zero the other two times so wonder why it showed up this time.
I think it maybe time to save up and install an oil by pass system just to be safe. I see that I did not list the oil filter I used, it was a Fleetguard Stratapore and is the same brand filter for all 3 oil test.
Oh in case some missed it I did list the miles for each sample and then total vehicle miles below. I see that when it showed up on the web page they got run closer together so I will try again to space them out below so its easier to read:
Sample Miles: 7695------6564------ 6972
Vehicle Miles: 34291-----26396-----20032
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2006 Ram 2500 Big Horn Edition Auto 5.9L Mineral Gray Met. Quad Cab SB 4X4 SRW 3.73's