Page 55 - WHITE BOOK

Appendix D
Oil and Wear Debris Analysis Data
Oil CFR. Fuel
Engine Mileage (km)
Oil Mileage (km)
Viscosity at 100C
TAN (mg KOH/g)
Water (ppm
Fe Ag Al Cr
Cu 1.7
Sn Si 14 7.2
B Instant Lubricant Test
Comments
High Sn indicates worn bearings and bushings.
Summary
Spec.
0W20 57752 Hybrid
Type 0W20 57752 Hybrid
134309 144667
0 10358
8.3 7.9
2.9 4.7
8753 3.7 615 14.6
0 3.8 0 0 11.3 0.4
14.1 16.6
9.3 27.9 7.4 28.9
164 Good 49.7 Good
High Si associated with the presence of sand/dirt in the oil. TAN increase significantly
Stable level of Si (sand/dirt). TAN exceeding prescribed limit. Oil viscosity remains acceptable and no significant increase in wear metals. Sn remains high.
0W20 57752 Hybrid 0W20 57752 Hybrid 0W20 57752 Hybrid
147827 151235 153377
13518 16926 19068
7.9 7.93 8.7
5.45 6.1 10.3
862 17.8 1093 23.8 2137 30.4
0 12.6 0.6 0 15.5 0.9 0 18.1 1.1
18.8 21.4
8.1 30.8 8.5 34.8
43.3 OK Plan change 43.7 OK Plan change 43.1 OK Plan change
Stable level of Si (sand/dirt). TAN exceeding
prescribed limit. Oil viscosity remains acceptable
and no significant increase in wear metals. Sn
remains high but stable.
Slight increase in Si (sand/dirt). TAN exceeding
prescribed limit. Oil viscosity remains acceptable.
Copper level indicating worn bearings and
bushings. Oil was replaced. Sn remains high but
stable.
New oil with TAN exceeding prescribed limit. . Oil
viscosity remains acceptable and no significant
increase in wear metals . Si (sand/dirt) and Sn
levels remain high
TAN remains high but stable. Dirt/sand level
increased. . Oil viscosity remains acceptable and cycles completed. Car taken off the
0W20 57752 Hybrid 0W20 57752 Hybrid
162805 165901
9428 12524
8 8.2
6.45 6.35 5.9
1273 17.3
0 11.4 0.6 0 12.2 0.7
13.1 14.4 10
9.1 29 6.8 34.2
56.7 OK Plan change
High Sn and Cu levels are evidence of worn bearings and bushings. High Si level is conducive to increase wear as hard sand particles grind on softer metals. Copper in the presence of moisture is a good catalyst to promote oxidation which leads to increased oil acidity (high TAN). The presence of high levels of Sn and Cu at the beginning of the program indicates that the bearings and bushings were already worn and was not caused by the oil change interval extension. 3
0W20 57752 Hybrid
173014 176799 179287
7113 10898 2488
8 8.8 8.5
1598 9.2 918 12 1601 3
0 7.3 0.4 0 9 0 0 4 0
10 39.1 5 48 19 10
68.3 Good 43 Good 166 Good
0W20 57752 Hybrid
6.2 2.92
18 2
Oil viscosity remains acceptable. Copper level increasing significantly indicating worn bearings and bushings. Oil replaced
New oil..
0W20 57752 Hybrid
D-1
= Within Limit
= Sample taken out of sequence
= Exceeded Limit
= Oil Change Occurred = Unexpected values
2512 20.1
49.7 OK Plan change
no significant increase in wear metals. Oil was replaced
New oil with TAN exceeding prescribed limit. Si (sand/dirt) level remains high. Sn level high indication of worn bearings and bushings.
sampling program