Passat 2005 Running On Used Soy Oil And B100

You'll notice high iron numbers for the last oil report. During that period I had stalled a hand full of times which requires 5-10 minutes of cranking the engine to get the air out. Turned out to be a bad hose letting air in. But the worst was forgetting to purge many times during that oil reporting period. The engine was not happy about that in the cold mornings and I think that combined with the fact that I went 4k miles on the oil is what really moved those Iron numbers up. It seems to be back under control though.