Oil analysis - 10W30 RP on Optra

[Kopikao]

I ran 7960km on this RP 10W30 and this is the wear analysis i got.

 

 

Metals (ppm)

Aluminium (Al) 6

Copper (Cu) 14

Chromium (Cr) 2

Iron (Fe) 18

Lead (Pb) 3

Tin (Sn) 3

Nickel (Ni) < 1

 

Contaminants / Additives (ppm)

Silicon (Si) 24

Boron (B) < 5

Sodium (Na) 11

Potassium (K) 7

Phosphorus (P) 868

Molybdenum (Mo) 100

Magnesium (Mg) 8

Calcium (Ca) 1937

Zinc (Zn) 1103

 

Physical Tests

Water (% by FTIR) <0.1

Nitration (Abs) 10

Viscosity (cSt,40

[Genie47]

F***! why are all the Chevy engines accepting Si into their engines?! My Aveo after 30k also same thing. Tell you what, the next time, I'm using vacuum grease to seal up the edges of the air filter when I install a new one to see.

 

Why did this company do a V@40C for you. No meaning. Doesn't tell you anything! What you are concerned with is V@100C. To know whether the oil has stayed in grade or not. No TBN? This doesn't tell you how long more the oil can last.

 

Glycol actually tells you if there is a coolant leak. No or low glycol means no leak. Coolant system in good health.

 

Tin looks OK. Low bearng wear. I'm a little worried about the iron and copper. How come so much......F***! must be the Si in the oil.

 

 

Compare your results with Audiorook's. You can check in BITOG his results with his Ipsum.

Edited April 30, 2005 by Genie47

[Maded]

you guys damned high-tech...

[Nerd_on_wheels]

how you get all these figures ??

[Brock]

These guys must have either tasted the oil and instantly knew the results in the brains or must have sent the oil sample to DSTA for lab analysis...

 

These guys are while me

[Maded]

erm... what is DSTA? Can eat one issit?

[Galactus]

DEFENCE SCIENCE TECHNOLOGY AGENCY

[Imc10]

Kopikao,

 

I am keen to learn how to understand these figures. Where would you suggest I start? Any good books or web links?

 

Also, like the rest, how did you get these figures???

 

You wise guidance appreciated

[Kopikao]

errrr... i am also trying to learn more.... Genie would be a better person to advise you

[Crv2004]

You meant that you use DSTA to test for all this . How much did it cost you or because you work in DSTA?

[Maded]

yeah how much does it cost?

[Kopikao]

F***! why are all the Chevy engines accepting Si into their engines?! My Aveo after 30k also same thing. Tell you what, the next time, I'm using vacuum grease to seal up the edges of the air filter when I install a new one to see.

 

Why did this company do a V@40C for you. No meaning. Doesn't tell you anything! What you are concerned with is V@100C. To know whether the oil has stayed in grade or not. No TBN? This doesn't tell you how long more the oil can last.

 

Glycol actually tells you if there is a coolant leak. No or low glycol means no leak. Coolant system in good health.

 

Tin looks OK. Low bearng wear. I'm a little worried about the iron and copper. How come so much......F***! must be the Si in the oil.

 

 

Compare your results with Audiorook's. You can check in BITOG his results with his Ipsum.

 

Next might send to Terry's instead.. more info and not doesn't cost much more...