I changed the oil after this final analysis.
Do you think I left this oil in too long?
I also got a TBN 9.15 and a TAN of 5.5
Sample date [May 24/09][March 3/ 09][Oct 30/08][May 15, 08]
Amsoil AME 15W40
Truck has [67710km][63681 km][57560][45916]
Oil Service [21794km][17765 km][11644km][12992 km]
Physical tests
Oil changed [Y][N][N][Y,and bypass filter installed]
Water% - [none][none][none][none]
Glycol % - [none][none][none][none]
Visc 40 degrees Celsius cSt - [73.3][70.3][74.1][73.7]
Visc 100 degrees Celsius cSt - [11.68][11.08][11.54][11.08]
Fuel % - [0.50][0.50][0.50][0.63]
Soot% - [0.27][0.26][0.26][.12]
Spectro - Chemical (ppm)
Silicon - [22][18][13][15]
Sodium - [8][6], 0, 0
Potassium - [2][3][3][2]
Iron - [70][51][37][45]
Chrome - [2][1][1][2]
Lead - [12][11][7][11]
Copper - [7][7][5][7]
Tin - [4][3],0 [3]
Aluminum - [5],0, 0 [4]
Nickel - [2],0,[1][1]
silver - 0,[1][1],0
Titanium - 0,0,0,0
Boron -[2][2][2][5]
Phosphorus -[1196] [1170][1010][1173]
Zinc -[1394] [1380][1170][1309]
Calcium - [3736][3610][3090][3378]
Barium -[1] [1],0,0
Magnesium -[10] [9][10][10]
Molybdenum -[7] [7][6][16]
Vanadium - 0,[1],0,0
Antimony - 0,[6],0,0
Lithium - 0,0,0,0
Beryllium - 0,0,0,0
Do you think I left this oil in too long?
I also got a TBN 9.15 and a TAN of 5.5
Sample date [May 24/09][March 3/ 09][Oct 30/08][May 15, 08]
Amsoil AME 15W40
Truck has [67710km][63681 km][57560][45916]
Oil Service [21794km][17765 km][11644km][12992 km]
Physical tests
Oil changed [Y][N][N][Y,and bypass filter installed]
Water% - [none][none][none][none]
Glycol % - [none][none][none][none]
Visc 40 degrees Celsius cSt - [73.3][70.3][74.1][73.7]
Visc 100 degrees Celsius cSt - [11.68][11.08][11.54][11.08]
Fuel % - [0.50][0.50][0.50][0.63]
Soot% - [0.27][0.26][0.26][.12]
Spectro - Chemical (ppm)
Silicon - [22][18][13][15]
Sodium - [8][6], 0, 0
Potassium - [2][3][3][2]
Iron - [70][51][37][45]
Chrome - [2][1][1][2]
Lead - [12][11][7][11]
Copper - [7][7][5][7]
Tin - [4][3],0 [3]
Aluminum - [5],0, 0 [4]
Nickel - [2],0,[1][1]
silver - 0,[1][1],0
Titanium - 0,0,0,0
Boron -[2][2][2][5]
Phosphorus -[1196] [1170][1010][1173]
Zinc -[1394] [1380][1170][1309]
Calcium - [3736][3610][3090][3378]
Barium -[1] [1],0,0
Magnesium -[10] [9][10][10]
Molybdenum -[7] [7][6][16]
Vanadium - 0,[1],0,0
Antimony - 0,[6],0,0
Lithium - 0,0,0,0
Beryllium - 0,0,0,0
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