This may or may not mean anything, but I was just looking at the Lucas spec. and MSDS sheets. The spec. sheets are virtually useless as they don't give anywhere near enough information, but the MSDS sheets show fairly low grp 3 content. Less than 50% for the 5w-30 and less than 25% for the 0w-30. They advertise the oil as being full synthetic which means the remaining content must be grp 4/5 minus the additives.
I could be way off base but this could be something worth looking into for those who like to have a higher grp 4/5 content oil.
I could be way off base but this could be something worth looking into for those who like to have a higher grp 4/5 content oil.