All used Schaeffers 9000 5W30
All used no detectable oil with no makeup added
All had oil filter change using the factory filter
Date 9/20/09 1/31/09 7/12/08 2/2/08
Miles
Unit 38382 27270 17280 9093
Oil 11112 9990 8187 5950
Cu 4 7 7 17
Fe 24 24 22 24
Cr 0 0 0 1
Ni 0 1 0 1
Ti 0 0 0 0
V 0 0 0 0
Ag 0 0 0
Pb 0 0 0 5
Sn 1 1 0 5
Al 8 8 7 9
Si 37 32 34 53
Na 11 17 18 12
K 2 3 2 2
Mo 257 237 228 233
B 2 3 3 3
Ba 1 1 0 2
Ca 1936 1802 1686 1948
Mg 9 8 7 10
Mn 0 0 0 1
P 686 619 562 704
Sb 39 36 28 25
Zn 906 842 722 845
Ferris Debris 10 5 15 6
Anti Freeze N N N N
Fuel Dilute N N N N
Water N N N N
Vis cSt @100C 11.4 11.1 10.6 9.3
FTIR on the last 2 analysis:
Sulf 35 33
Oxid 35 32
Nitr 18 17
This 4Runner is driven hard with a combination of city and highway driving. No makeup oil or additives used. When I changed to the oil in this analysis, the oil level was mid way between add and full. I left it there the whole time and monitored. No detectable oil consumption. A new air filter was installed at the oil change time. I can find no air leakage, but it seems as though it very well may be present.
All used no detectable oil with no makeup added
All had oil filter change using the factory filter
Date 9/20/09 1/31/09 7/12/08 2/2/08
Miles
Unit 38382 27270 17280 9093
Oil 11112 9990 8187 5950
Cu 4 7 7 17
Fe 24 24 22 24
Cr 0 0 0 1
Ni 0 1 0 1
Ti 0 0 0 0
V 0 0 0 0
Ag 0 0 0
Pb 0 0 0 5
Sn 1 1 0 5
Al 8 8 7 9
Si 37 32 34 53
Na 11 17 18 12
K 2 3 2 2
Mo 257 237 228 233
B 2 3 3 3
Ba 1 1 0 2
Ca 1936 1802 1686 1948
Mg 9 8 7 10
Mn 0 0 0 1
P 686 619 562 704
Sb 39 36 28 25
Zn 906 842 722 845
Ferris Debris 10 5 15 6
Anti Freeze N N N N
Fuel Dilute N N N N
Water N N N N
Vis cSt @100C 11.4 11.1 10.6 9.3
FTIR on the last 2 analysis:
Sulf 35 33
Oxid 35 32
Nitr 18 17
This 4Runner is driven hard with a combination of city and highway driving. No makeup oil or additives used. When I changed to the oil in this analysis, the oil level was mid way between add and full. I left it there the whole time and monitored. No detectable oil consumption. A new air filter was installed at the oil change time. I can find no air leakage, but it seems as though it very well may be present.