First time UOA. Appears good to me. Anything notable?
I feel like I got my money's worth for this oil change. I also feel pretty safe going 2 full years and upto 14k, though I'll probably do one more OCI at 12k to confirm the data point. Plus I switched to M1 0w40, so I'd like to do an apples-apples on it vs. AMSOil as much as is possible.
Code:
ALLAN: No, you shouldn't have any problems leaving the oil in use for a year or
two. Even three or four years shouldn't be a problem, if the engine starts to see
even less use. Averages are based on about 7,600 miles on the oil, so you've run
this oil a little longer than average. Iron and copper are a bit elevated, but
certainly nothing too surprising turned up here, considering your longer run. The
viscosity was just a little low, but that's not a major concern. No contamination
was found and the TBN was fine at 1.9 (1.0 is considered low). Nice. Try up to
13,000 miles.
Sample Date 8/20/14
Make Up Oil 0.5 qt (Castrol GTX 0w40 conv)
Univ Avg
ALUMINUM 5 4
CHROMIUM 1 1
IRON 32 28
COPPER 13 7
LEAD 2 1
TIN 0 1
MOLYBDENUM 16 74
NICKEL 0 1
MANGANESE 1 3
SILVER 0 0
TITANIUM 0 0
POTASSIUM 0 3
BORON 53 98
SILICON 11 9
SODIUM 7 18
CALCIUM 1634 2257
MAGNESIUM 18 62
PHOSPHORUS 702 840
ZINC 861 969
BARIUM 0 0
Values Should Be*
SUS Viscosity @ 210°F 63.0 65-78
cSt Viscosity @ 100°C 11.06 11.6-15.3
Flashpoint in °F 405 >375
Fuel %
Antifreeze % 0.0 0.0
Water % 0.0
Insolubles % 0.2
TBN 1.9 >1.0
I feel like I got my money's worth for this oil change. I also feel pretty safe going 2 full years and upto 14k, though I'll probably do one more OCI at 12k to confirm the data point. Plus I switched to M1 0w40, so I'd like to do an apples-apples on it vs. AMSOil as much as is possible.
Code:
ALLAN: No, you shouldn't have any problems leaving the oil in use for a year or
two. Even three or four years shouldn't be a problem, if the engine starts to see
even less use. Averages are based on about 7,600 miles on the oil, so you've run
this oil a little longer than average. Iron and copper are a bit elevated, but
certainly nothing too surprising turned up here, considering your longer run. The
viscosity was just a little low, but that's not a major concern. No contamination
was found and the TBN was fine at 1.9 (1.0 is considered low). Nice. Try up to
13,000 miles.
Sample Date 8/20/14
Make Up Oil 0.5 qt (Castrol GTX 0w40 conv)
Univ Avg
ALUMINUM 5 4
CHROMIUM 1 1
IRON 32 28
COPPER 13 7
LEAD 2 1
TIN 0 1
MOLYBDENUM 16 74
NICKEL 0 1
MANGANESE 1 3
SILVER 0 0
TITANIUM 0 0
POTASSIUM 0 3
BORON 53 98
SILICON 11 9
SODIUM 7 18
CALCIUM 1634 2257
MAGNESIUM 18 62
PHOSPHORUS 702 840
ZINC 861 969
BARIUM 0 0
Values Should Be*
SUS Viscosity @ 210°F 63.0 65-78
cSt Viscosity @ 100°C 11.06 11.6-15.3
Flashpoint in °F 405 >375
Fuel %
Antifreeze % 0.0 0.0
Water % 0.0
Insolubles % 0.2
TBN 1.9 >1.0