2003 Jetta TDI with 292,800 miles
Blackstone: Something caused this oil to thicken up a lot while it was in service. The viscosity was higher than any diesel engine oil. That can be caused by soot from a combustion issue, and the lab did note an excess amount of soot. We're also seeing potassium, which can show coolant, and coolant can also cause the oil to thicken like this. We know these engines can suffer from poor cam wear, which will cause high iron like you have so that would be one possibility.
Me: My coolant level has not dropped
Aluminum 4
Chromium. 3
Iron. 88
Copper. 3
Lead. 3
Tin. 1
Molybdenum. 62
Nickel. 2
Manganese. 1
Potassium. 16
Boron. 30
Silicon. 5
Sodium. 8
Calcium. 855
Magnesium. 1243
Phosphorus. 1028
Zinc. 1250
SUS viscosity @ 210F. 152.5
cSt viscosity @ 100C. 32.2
Flashpoint 445F
Blackstone: Something caused this oil to thicken up a lot while it was in service. The viscosity was higher than any diesel engine oil. That can be caused by soot from a combustion issue, and the lab did note an excess amount of soot. We're also seeing potassium, which can show coolant, and coolant can also cause the oil to thicken like this. We know these engines can suffer from poor cam wear, which will cause high iron like you have so that would be one possibility.
Me: My coolant level has not dropped
Aluminum 4
Chromium. 3
Iron. 88
Copper. 3
Lead. 3
Tin. 1
Molybdenum. 62
Nickel. 2
Manganese. 1
Potassium. 16
Boron. 30
Silicon. 5
Sodium. 8
Calcium. 855
Magnesium. 1243
Phosphorus. 1028
Zinc. 1250
SUS viscosity @ 210F. 152.5
cSt viscosity @ 100C. 32.2
Flashpoint 445F