Most recent UOA for a 1.6L diesel tractor. Column 1 is 107h on oil, Column 2 is 191 hr on oil (508 hours total on engine). The initial fill was Amsoil 10w40 AMO, with 2qts make up oil for filter changes during last UOA interval. There were 3 qts make up oil for filter changes during this interval of Amsoil 5w30 HDD. Bypass filtration with TP filter (now MotorGuard). I was surprised to note the viscosity at 13.55 with using 5w30 HDD as the make up oil during this interval. Any comments?
107h 191h
Iron 2 9
Chromium 1 1
Lead 1 0
Copper 4 4
Tin 0 0
Aluminum 1 1
Nickel 0 0
Silver 0 0
Silicon 3 5
Boron 3 5
Sodium 0 2
Magnesium 38 36
Calcium 3410 3765
Barium 0 0
Phosphorus 910 1172
Zinc 1345 1361
Molybdenum 0 0
Titanium 0 0
Vandium 0 0
Potassium 0 0
Fuel %vol Vis100c 13.13 13.55
Water %vol 0.0 0.0
Soot/Solids %wt 0.3 0.09
Glycol Neg Neg
Nitr 13.0 14.0
Oxid 16.0 16.0
TBN 12.7 11.18
107h 191h
Iron 2 9
Chromium 1 1
Lead 1 0
Copper 4 4
Tin 0 0
Aluminum 1 1
Nickel 0 0
Silver 0 0
Silicon 3 5
Boron 3 5
Sodium 0 2
Magnesium 38 36
Calcium 3410 3765
Barium 0 0
Phosphorus 910 1172
Zinc 1345 1361
Molybdenum 0 0
Titanium 0 0
Vandium 0 0
Potassium 0 0
Fuel %vol Vis100c 13.13 13.55
Water %vol 0.0 0.0
Soot/Solids %wt 0.3 0.09
Glycol Neg Neg
Nitr 13.0 14.0
Oxid 16.0 16.0
TBN 12.7 11.18