Blackstone comment:
This is the virgin sample of Castrol Edge 5W/30 you sent in. The main additive in this sample is
calcium, a detergent/dispersant additive. Boron is another detergent/dispersant additive. There are similar levels of phosphorus and zinc (ZDDP), as well as some molybdenum, all of which are anti-wear additives. This oil contains titanium as well. No contamination is present. The TBN is 7.7 and the TAN measured 3.1. The viscosity was in the correct range for 5W/30 as well. This oil is ready to be put into service.
Code:
ALUMINUM 0
CHROMIUM 0
IRON 1
COPPER 0
LEAD 0
TIN 0
MOLYBDENUM 64
NICKEL 0
SILVER 0
TITANIUM 0
POTASSIUM 22
BORON 310
SILICON 4
SODIUM 2
CALCIUM 1950
MAGNESIUM 8
PHOSPHORUS 604
ZINC 737
BARIUM 0
SUS Viscosity @ 210°F 59.1
cSt Viscosity @ 100°C 9.96
Flashpoint in °F 440
Fuel % -
Antifreeze % -
Water % 0
Insolubles % 0
TBN 7.7
TAN 3.1
Pretty sad for me. This is an oil that should be suitable for 15k service interval. But I see that TBN is just 7.7. Detergent additives are not great too, moly and titanium are in homoeopathic dozes. The only bright spot is boron.
This is the virgin sample of Castrol Edge 5W/30 you sent in. The main additive in this sample is
calcium, a detergent/dispersant additive. Boron is another detergent/dispersant additive. There are similar levels of phosphorus and zinc (ZDDP), as well as some molybdenum, all of which are anti-wear additives. This oil contains titanium as well. No contamination is present. The TBN is 7.7 and the TAN measured 3.1. The viscosity was in the correct range for 5W/30 as well. This oil is ready to be put into service.
Code:
ALUMINUM 0
CHROMIUM 0
IRON 1
COPPER 0
LEAD 0
TIN 0
MOLYBDENUM 64
NICKEL 0
SILVER 0
TITANIUM 0
POTASSIUM 22
BORON 310
SILICON 4
SODIUM 2
CALCIUM 1950
MAGNESIUM 8
PHOSPHORUS 604
ZINC 737
BARIUM 0
SUS Viscosity @ 210°F 59.1
cSt Viscosity @ 100°C 9.96
Flashpoint in °F 440
Fuel % -
Antifreeze % -
Water % 0
Insolubles % 0
TBN 7.7
TAN 3.1
Pretty sad for me. This is an oil that should be suitable for 15k service interval. But I see that TBN is just 7.7. Detergent additives are not great too, moly and titanium are in homoeopathic dozes. The only bright spot is boron.