John Deere 6081 farm tractor. First column represents the first sample with 676 hours on machine and 268 hours on oil. second collumn is the subsequent uoa with 1183 hours on machine and 507 hours on oil.
hours 268 hours 507
cop 4 4
iron 17 19
chrom 1 1
alum 3 3
lead 1 2
moly 141 240
phos 1816 1334
zinc 2047 1433
mag 15 11
calc 5371 3988
silicon 3 10
visc 14.99 12.58
sulf 5 9
oxi 4 3
nit 3 4
soot .0 .1
anti,h20,fuel all nil.
hours 268 hours 507
cop 4 4
iron 17 19
chrom 1 1
alum 3 3
lead 1 2
moly 141 240
phos 1816 1334
zinc 2047 1433
mag 15 11
calc 5371 3988
silicon 3 10
visc 14.99 12.58
sulf 5 9
oxi 4 3
nit 3 4
soot .0 .1
anti,h20,fuel all nil.