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Read our primer articles on Oil Analysis and Tribology

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A typical engine oil analysis report is pasted below for your reference.Sorry I could not attach the same.


Characteristics Method Results

PHYSICO/CHEMICAL PROPERTIES
Viscosity @ 40°C,Cst ASTM D 445 96.47
Viscosity @ 100°C,cSt ASTM D 445 13.55
Viscosity Index ASTM D 2270 141
TBN,mgKOH/gm ASTM D 2896 9.23
TAN,mgKOH/gm ASTM D 664 3.96
Flash Point,COC °C ASTM D 92 230
CONTAMINATION
Water ppm ASTM D 6304 0
Soot % FTIR 0.3
Pentane Insoluble,%wt ASTM D 893 B 0.08
Toluene Insoluble,%wt ASTM D 893 B 0.04
Difference 0.04
WEAR METALS
Iron,ppm ASTM D 5185 7
Aluminium,ppm ASTM D 5185 0
Chromium,ppm ASTM D 5185 0
Copper,ppm ASTM D 5185 0
Lead,ppm ASTM D 5185 0
Silicon,ppm ASTM D 5185 0
Nickel,ppm ASTM D 5185 10
Tin ASTM D 5185 0
thak you,
the report we receive is below.
I think that the report do not show realy the oil condition,and the comment is function of the oil contamination.

Satisfactory for continued service.

Viscosity 40 C cSt 115
Closed Flash Point C 200+
Total Insolubles % 0.2
Total Base Number 10.9
Water Content % <0.20
Sodium ppm 1
Copper ppm 3
Lead ppm N.D.
Tin ppm N.D.
Aluminium ppm 4
Silver ppm N.D.
Iron ppm 6
Molybdenum ppm 1
Chromium ppm N.D.
Manganese ppm 1
Nickel ppm N.D.
Titanium ppm N.D. .
Vanadium ppm N.D.
Silicon ppm 11
To get an more compete conclution you need to know a lot more parameters like oil type, hrs engine, hrs oil and more.

Overall it looks to have low wear element content. Be aware that analysis is most likely done by ICP or RDE meaning maximum particle size analysed is 6-8 µm. If you have had recent engine problems you should check oil filters for larger wear debries.
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