Attention: TDR Forum Junkies 
I just got back my most recent oil analysis and thought I would post a comparison between it and one of my earlist ones. Both are with Amsoil 15W40 full synthetic diesel.
40,087 mile test 150086 mile test
Glycol Neg Neg
% water Neg <0. 05
% fuel Neg <1. 0
Viscosity
100c 12. 7 13. 2
Solids 0. 0 0. 0
Oil Degradation
Soot 0. 1 <1. 0
% oxd not run 10. 0
%NOX not run 10. 0
TBN " " 12. 7
TAN " " N/A
Spetrographic Analysis (PPM)
Fe 9 17
Cr 1 1
Pb 2 4
Cu 0 1
Sn 6 1
Al 1 7
Ni 0 0
Ag 0 0
Mn 676 1
Si 4 2
B 2 31
Na 3 3
Mg 549 4
Ca 2683 4331
Ba 0 0
P 1087 1234
Zn 1194 1370
Mo 0 0
Ti 0 0
V 0 0
Cd 0 0
All in all the numbers are fairly consistant. In both cases the oil was OK for continued use - sample at next regular interval.
Still Happy trails
Bob
Well this didn't post the way I wrote it so after each catagory you will see 2 responces the first one is the earlier one the second the latter. If you have any ??? please let me know.
40,087 mile test 150086 mile test
Glycol Neg Neg
% water Neg <0. 05
% fuel Neg <1. 0
Viscosity
100c 12. 7 13. 2
Solids 0. 0 0. 0
Oil Degradation
Soot 0. 1 <1. 0
% oxd not run 10. 0
%NOX not run 10. 0
TBN " " 12. 7
TAN " " N/A
Spetrographic Analysis (PPM)
Fe 9 17
Cr 1 1
Pb 2 4
Cu 0 1
Sn 6 1
Al 1 7
Ni 0 0
Ag 0 0
Mn 676 1
Si 4 2
B 2 31
Na 3 3
Mg 549 4
Ca 2683 4331
Ba 0 0
P 1087 1234
Zn 1194 1370
Mo 0 0
Ti 0 0
V 0 0
Cd 0 0
All in all the numbers are fairly consistant. In both cases the oil was OK for continued use - sample at next regular interval.
Still Happy trails
Bob
Well this didn't post the way I wrote it so after each catagory you will see 2 responces the first one is the earlier one the second the latter. If you have any ??? please let me know.
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