This is a sample of 5w20, Blackstone made a mistake. This is 5w20
Iron: 1
Boron: 276
Silicon: 1
Calcium: 1535
Mag: 6
Phos: 568
Zinc: 652
JOHN: We have run a Lucas 5W/30 in the past for you. That earlier sample had a TBN of 8.4, where
this one was 6.8. We have no idea why that variance would exist, though with less boron and calcium
this time, you could assume there has been a minor change to the additive group, or possibly the guy
shoveling the additive in just had an off day when this most recent oil was blended. No moisture or
insolubles found. The viscosity was right on expectations for a 5W/30. This is serviceable oil.
Iron: 1
Boron: 276
Silicon: 1
Calcium: 1535
Mag: 6
Phos: 568
Zinc: 652
JOHN: We have run a Lucas 5W/30 in the past for you. That earlier sample had a TBN of 8.4, where
this one was 6.8. We have no idea why that variance would exist, though with less boron and calcium
this time, you could assume there has been a minor change to the additive group, or possibly the guy
shoveling the additive in just had an off day when this most recent oil was blended. No moisture or
insolubles found. The viscosity was right on expectations for a 5W/30. This is serviceable oil.