This sample is from a friend who was being nagged by a new distributor to try a new oil called Tutela Urania Turbo (supposedly CI-4)- made by FL (formerly Fiat Lubricants) in Brazil. Finally the guy left him a drum to try FREE. Of course he couldn't resist trying it, so he put it in one of his smaller New Holland tractors. Hours on oil - 250, hours on tractor - 532. Here are the results:
Iron 156
chrom 22
lead 105
copper 78
tin 13
aluminum 29
nickel 0
silver 0
silicon 49
boron 53
sodium 1
mag 270
calcium 2362
barium 0
phos 865
zinc 973
moly 0
fuel water 0
visc 14.65
soot 0.2
tbn 8.1
Iron 156
chrom 22
lead 105
copper 78
tin 13
aluminum 29
nickel 0
silver 0
silicon 49
boron 53
sodium 1
mag 270
calcium 2362
barium 0
phos 865
zinc 973
moly 0
fuel water 0
visc 14.65
soot 0.2
tbn 8.1