First Engine Oil Analysis! Aluminum?! please help

[Highdesert]

truck has 111,000 miles, oil is delo 15 40 with 3000 miles on oil, truck has been run with lots of city miles and no load, along with smarty jr on economy.

Iron 8

Chromium 0

Nickel 0

Aluminum 28 (minor)

Copper 1

Lead 0

Tin 0

Cadmium 0

Silver 1

Vanadium 0

Silicon 5

Sodium 17

Potassium 4

Titanium 0

Molybdenum 89

Antimony 0

Manganese 0

Litium 0

Boron 477

Magnesium 380

Calcium 1542

Barium 0

Phosphorus 1053

Zinc 1286

Fuel Dilution <1%

Soot 0. 2% - FTIR

Water <0. 1% FTIR

Viscosity @ 100c 13. 8

Sample says aluminum is at minor level, can anyone elaborate on this or give me some kind of education on the numbers that are given, any help is appreciated!! This is on my brothers 2006 mega cab,

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[steved]

Aluminum is pistons, typically.



How many samples have you submitted? One doesn't really tell you that much. It could be as simple as a lab error or a "particle streak"... a one time issue.

 

[Highdesert]

This is the first sample, bought the truck a year ago

 

[steved]

Give it a while and resample... see if the aluminum is still there. If not, good to go; if it is... might be a sign of trouble.

I tried listing the element with its source from an oil analyses, but its been a while since I researched it and I probably got a few wrong.

Iron - obvious
Chromium - piston rings typically
Nickel - part of iron makeup
Aluminum - pistons
Copper - can be either bearings (base) or oil cooler
Lead - bearings (coating)
Tin - bearings (typically the "babbit" is a tin/lead compound if I remember correctly)
Cadmium - component of steel typically, anticorrosion plating
Silver - not sure, babbit?
Vanadium - component of steel typically
Silicon - dirt passing air filter or antifoam if in virgin oil sample
Sodium - antifreeze?
Potassium - antifreeze?
Titanium - component of steel?
Molybdenum - antiwear component of oil
Antimony - component of steel typically
Manganese - component of steel typically
Lithium - not sure
Boron - component of oil
Magnesium - component of oil
Calcium - antiwear component of oil
Barium - not sure, I think steel
Phosphorus - antiwear component of oil
Zinc - antiwear component of oil

 

[NavyDood]

I won't totally reiterate what I posted on CF. Aluminum is normally a wear metal but can come from other sources also. It is detected with Elemental Analysis by ICP (inductively-coupled plasma) and only records measurements less than 10 micron in size. Alumina is an airborne metal. If a person were to have a faulty air filter that could be a source. Valve covers and oil supply are a couple of other sources.

Keep an eye on both forums. Like already mentioned the first analysis is nothing to overly fret about.

 

[Tinman]

Had this show up on the wife's Jeep CRD once. Next sample is was gone. Re-sample. If it is a pattern it may be an issue.