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#1110194 - 03/20/08 09:22 AM Cheat sheet for newbies reading UOA's
Bambam Offline


Registered: 12/16/03
Posts: 751
Loc: CT
I am trying to interpret UOA's. I get info through others comments but like most newbies I don't know alot and get confused by certain elements etc. So Ityped this up for all to print out and have next to them for guidance. To be added/edited as we all see fit.

Mods please move if this is unappropriate for this particular forum.

WEAR METAL SOURCES

IRON……….CYLINDERS, GEARS, RINGS, CRANKSHAFTS, LINERS, BEARINGS, HOUSINGS, RODS, and PLATINGS

CHROMIUM……………..RINGS,ROLLER/TAPER BEARINGS, RODS, PLATINGS

LEAD……….BEARING OVERLAYS, ADDITIVES IN GEAR OIL AND GASOLINE

COPPER…………………BUSHINGS, BEARINGS, THRUST WASHERS, FRICITION PLATES, OIL COOLERS, ADDITIVE IN OIL

TIN………………………………….BEARINGS, BUSHINGS, PISTONS, PLATINGS

ALUMINUM………PISTONS, BEARINGS, PUMPS, BLOWERS, ROTORS, THRUST WASHERS

NICKEL……………………………………………………………………VALVES

SILVER………………………………………….BEARINGS,BUSHINGS,PLATING

MANGANESE……….TRACE ELEMENTS IN LINERS AND RINGS, ADDITIVE IN GASLOLINE.

TITANIUM……………………………………………………….TRACE ELEMENT

VANADIUM……………………………………………………..TRACE ELEMENT



CONTANIMENTS & SOURCES

SILICON…………………………………….ELEMENT USED TO DETERMINE THE LEVEL OF AIRBORNE DIRT AND ABRASIVES IN THE OIL.(SOMETIMES USED AS AN ANTI-FOAM AGENT)

BORON………………………….PRESENT IN MOST PERMANENT ANTI-FREEZE SYSTEMS AND COOLING SYSTEMS INHIBITORS (SOMETIMES USED AS AN ADDITIVE)

SODIUM………………………………….PRESENT IN MOST PERMANENT ANTI-FREEZE SYSTEMS AND COOLING SYSTEM INHIBITORS (SOMETIMES USED AS AN ADDITIVE)

POTASSIUM………….PRESENT IN MOST PERMANENT ANTI-FREEZE SYSTEMS AND COOLING SYSTEM INHIBITORS (SOMETIMES USED AS AN ADDITIVE IN GEAR OIL)



ADDITIVES AND THEIR FUNCTION

MAGNESIUM……………………….DISPERSENT/DETERGENT ADDITIVE

CALCIUM………………………….. DISPERSENT/DETERGENT ADDITIVE

BARIUM………………………….. DISPERSENT/DETERGENT ADDITIVE.

PHOSPHORUS…………………………………..….ANTI-WEAR ADDITIVE

ZINC……………………………………………….…. ANTI-WEAR ADDITIVE

MOLBDENUM………………………………….…… ANTI-WEAR ADDITIVE


FUEL DILUTION = UNBURNED FUEL IN THE OIL MAY SIGNAL FUEL SYSTEM LEAKS OR INCOMPLETE COMBUSTION.

FUEL SOOT = A RESULT IN INCOMPLETE COMBUSTION OR BLOW-BY. HIGH DRAIN LEVELS AMY INDICATES COMBUSTION PROBLEMS OR OVEREXTENDED DRAIN INTERVALS.


VISCOSITY = THE KINEMATIC VISCOSITY DETERMINED AT 40°C AND/OR 100°C IS A MEASURE OF THE FLOW RATE OF AN OIL IN RELATION TO TIME. THIS DATA IS USED TO ASSIGN AN SAE GRADE TO OIL.


SAE GRADE…………….MIN-cST-100°………………MAX-Cst

10w……………………4.10………………………….xx

20w………………………..5.60……………………….9.29

30w…………………………9.30……………………..…12.49

40w……………………….12.50……………………………16.29

50w………………………..16.30………………………………21.89
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#1110209 - 03/20/08 09:37 AM Re: Cheat sheet for newbies reading UOA's [Re: Bambam]
Johnny Offline


Registered: 05/27/02
Posts: 14013
Loc: Retired | Wausau, WI
Very nice. This might be a good sticky at the top of the UOA section for all to reference.


Edited by Johnny (03/20/08 09:38 AM)

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#1110356 - 03/20/08 12:43 PM Re: Cheat sheet for newbies reading UOA's [Re: Johnny]
ZZman Offline


Registered: 03/17/08
Posts: 4237
Loc: Michigan
There should also be a similar sticky in the car section
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#1110929 - 03/21/08 08:24 AM Re: Cheat sheet for newbies reading UOA's [Re: Bambam]
Pablo Offline


Registered: 10/28/02
Posts: 46827
Loc: Duvall WA - Pacific NW USA
Generally ok.....the viscosity table could be quite misleading. Atleast drop the "w"s Better to just post the whole table from J300: http://www.infineum.com/information/api-viscosity-2004.html

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#1112483 - 03/23/08 03:42 PM Re: Cheat sheet for newbies reading UOA's [Re: Pablo]
D-Roc Offline


Registered: 11/23/05
Posts: 1525
Loc: quelque part
Awesome- great for those who are up on their UOA knowlege, but like who need a quick reference once in a while.

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#1112628 - 03/23/08 07:49 PM Re: Cheat sheet for newbies reading UOA's [Re: D-Roc]
Steve S Offline


Registered: 01/20/03
Posts: 18449
Loc: East of IGO
Any one know where a condemnation limit chart is posted?
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#1124509 - 04/08/08 07:41 AM Re: Cheat sheet for newbies reading UOA's [Re: Steve S]
Jim Allen Offline


Registered: 08/12/05
Posts: 4477
Loc: NW Ohio
Excellent work, Bambam. Thanks for taking the time to do it.
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#1200118 - 07/23/08 11:36 AM Re: Cheat sheet for newbies reading UOA's [Re: Jim Allen]
RWEST Offline


Registered: 10/25/07
Posts: 1373
Loc: Somerset County, PA
So, to help out an oil-dork, what should the numbers be for a multi-vis, say, RTS 5-40?
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#1212098 - 08/09/08 06:42 PM Re: Cheat sheet for newbies reading UOA's [Re: RWEST]
D-Roc Offline


Registered: 11/23/05
Posts: 1525
Loc: quelque part
For Admin, would it be possible to update the above info with oxidation, nitration and sulfation? This one specifically for myself, just a reference of the numbers on what is high and low. But also for others.
I know one way they are measured is using a spectrometer with how much infrared light is absorbed by the products of oxidation, nitration, sulfation, but not what is acceptable, high and low. Some uoa's also are coming through with just the number...Blackstone usually has perameters/guidelines, but some don't.

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#1218196 - 08/17/08 10:25 AM Re: Cheat sheet for newbies reading UOA's [Re: D-Roc]
lewdwig Offline


Registered: 10/23/07
Posts: 653
Loc: Southwest Michigan
I'll look for something on TBN and include it.
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#1379270 - 02/19/09 04:14 PM Re: Cheat sheet for newbies reading UOA's [Re: lewdwig]
TSHACK Offline


Registered: 02/17/09
Posts: 29
Loc: Virginia Beach, Va
AWESOME!!
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#1539320 - 07/21/09 12:26 PM Re: Cheat sheet for newbies reading UOA's [Re: TSHACK]
bloc Offline


Registered: 10/17/08
Posts: 11
Loc: Houston, Tx
I also wanted to request "condemnation" limits, or at least numbers at which we should start wondering.

TBN explanation would be nice too!!

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#1701615 - 12/09/09 01:54 PM Re: Cheat sheet for newbies reading UOA's [Re: bloc]
addyguy Offline


Registered: 09/08/05
Posts: 13590
Loc: Canada
You missed Antimony - used by some oils in their add-pack; I think it's an anti-oxidant?
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#1702278 - 12/09/09 10:17 PM Re: Cheat sheet for newbies reading UOA's [Re: addyguy]
White_Buffalo Offline


Registered: 02/26/07
Posts: 52
Loc: Sioux Falls, SD
Originally Posted By: addyguy
You missed Antimony - used by some oils in their add-pack; I think it's an anti-oxidant?


Not that many labs test for Antimony. I have seen Amsoil's OAI testing and Polaris show it in there UOA reports. I thinks Schaeffer's uses Antimony as a high pressure additive.
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#1738405 - 01/10/10 09:42 PM Re: Cheat sheet for newbies reading UOA's [Re: White_Buffalo]
TucsonDon Offline


Registered: 06/29/07
Posts: 434
Loc: Arizona, USA
I think Boron is becoming part of the additive pack of some oils ... Rotella CJ-4 comes to mind as having increased the Boron.
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