Blackstone Labs
31,365 miles on car and fluid
Factory Fill
No make up fluid
This being the first ATF sample since the transmission was new, the higher-than-average metals
and silicon are not surprising. Universal averages show typical wear levels for this type of transmission after
about 19,600 miles on the oil. The elevated metals readings are from new parts wearing-in, as well as
accumulated from normal use. Silicon is from sealers. The viscosity was a little light, likely from the long
ATF use. The TAN reading of 1.6 shows the ATF was somewhat acidic. Check back after 20K miles on the next oil.
ALUMINUM 46
CHROMIUM 3
IRON 103
COPPER 12
LEAD 1
TIN 3
MOLYBDENUM 1
NICKEL 6
MANGANESE 4
SILVER 0
TITANIUM 0
POTASSIUM 1
BORON 56
SILICON 184
SODIUM 3
CALCIUM 130
MAGNESIUM 3
PHOSPHORUS 282
ZINC 6
BARIUM 3
cSt Viscosity @ 100°C 42.7
SUS Viscosity @ 210°F 5.02
Flashpoint in °F 335
Fuel %
Antifreeze %
Water %
Insolubles % TR
TBN
TAN 1.6
ISO Code
I refilled with Redline D6, no noticeable change in performance.
31,365 miles on car and fluid
Factory Fill
No make up fluid
This being the first ATF sample since the transmission was new, the higher-than-average metals
and silicon are not surprising. Universal averages show typical wear levels for this type of transmission after
about 19,600 miles on the oil. The elevated metals readings are from new parts wearing-in, as well as
accumulated from normal use. Silicon is from sealers. The viscosity was a little light, likely from the long
ATF use. The TAN reading of 1.6 shows the ATF was somewhat acidic. Check back after 20K miles on the next oil.
ALUMINUM 46
CHROMIUM 3
IRON 103
COPPER 12
LEAD 1
TIN 3
MOLYBDENUM 1
NICKEL 6
MANGANESE 4
SILVER 0
TITANIUM 0
POTASSIUM 1
BORON 56
SILICON 184
SODIUM 3
CALCIUM 130
MAGNESIUM 3
PHOSPHORUS 282
ZINC 6
BARIUM 3
cSt Viscosity @ 100°C 42.7
SUS Viscosity @ 210°F 5.02
Flashpoint in °F 335
Fuel %
Antifreeze %
Water %
Insolubles % TR
TBN
TAN 1.6
ISO Code
I refilled with Redline D6, no noticeable change in performance.
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