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


07 DMAX CC 4x4 ~ Synthetics in the driveline, Delo XLE 15w40 in the sump.
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Re: Cheat sheet for newbies reading UOA's [Re: Bambam] #1110209 03/20/08 09:37 AM
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Johnny Offline
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Very nice. This might be a good sticky at the top of the UOA section for all to reference.

Last edited by Johnny; 03/20/08 09:38 AM.
Re: Cheat sheet for newbies reading UOA's [Re: Johnny] #1110356 03/20/08 12:43 PM
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ZZman Online Content
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There should also be a similar sticky in the car section


2003 Mercury Grand Marquis.
2007 Hyundai Santa Fe AWD.
2005 Toyota Avalon XLS
2006 Kawasaki Vulcan 900 LT.
Re: Cheat sheet for newbies reading UOA's [Re: Bambam] #1110929 03/21/08 08:24 AM
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Pablo Offline
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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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Re: Cheat sheet for newbies reading UOA's [Re: Pablo] #1112483 03/23/08 03:42 PM
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D-Roc Offline
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Awesome- great for those who are up on their UOA knowlege, but like who need a quick reference once in a while.

Re: Cheat sheet for newbies reading UOA's [Re: D-Roc] #1112628 03/23/08 07:49 PM
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Steve S Offline
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Any one know where a condemnation limit chart is posted?

Re: Cheat sheet for newbies reading UOA's [Re: Steve S] #1124509 04/08/08 07:41 AM
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Jim Allen Offline
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Excellent work, Bambam. Thanks for taking the time to do it.


Jim Allen
Keepin' the Good Old Days of Four Wheeling Alive
Re: Cheat sheet for newbies reading UOA's [Re: Jim Allen] #1200118 07/23/08 11:36 AM
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RWEST Offline
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So, to help out an oil-dork, what should the numbers be for a multi-vis, say, RTS 5-40?


"even if you're paranoid, they can still be following you" hide

"live so the preacher doesn't have to lie at your funeral" wink


Re: Cheat sheet for newbies reading UOA's [Re: RWEST] #1212098 08/09/08 06:42 PM
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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.

Re: Cheat sheet for newbies reading UOA's [Re: D-Roc] #1218196 08/17/08 10:25 AM
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I'll look for something on TBN and include it.


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Re: Cheat sheet for newbies reading UOA's [Re: lewdwig] #1379270 02/19/09 05:14 PM
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TSHACK Offline
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AWESOME!!


2003 Supercharged F150 Harley Davidson. Mine
2011 Jeep Wrangler Unlimited. Wife
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2010 Sentra SE-R. Daughter
AMSOIL in all of them.
Re: Cheat sheet for newbies reading UOA's [Re: TSHACK] #1539320 07/21/09 12:26 PM
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bloc Offline
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I also wanted to request "condemnation" limits, or at least numbers at which we should start wondering.

TBN explanation would be nice too!!

Re: Cheat sheet for newbies reading UOA's [Re: bloc] #1701615 12/09/09 02:54 PM
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addyguy Offline
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You missed Antimony - used by some oils in their add-pack; I think it's an anti-oxidant?


2010 Kia Soul 2U - 2.0L I-4, auto; 145k miles.
Castrol GTX HM 5W-30, STP blue bottle; Fram TG 9688.

2009 Pontiac G5 - 2.2 I-4, auto, 121k miles.
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Re: Cheat sheet for newbies reading UOA's [Re: addyguy] #1702278 12/09/09 11:17 PM
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White_Buffalo Offline
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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.


2003 7.3L F250 Wildman tunes Van turbo, DIIC, AIS, swamps 175/146 inj
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Re: Cheat sheet for newbies reading UOA's [Re: White_Buffalo] #1738405 01/10/10 10:42 PM
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TucsonDon Offline
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I think Boron is becoming part of the additive pack of some oils ... Rotella CJ-4 comes to mind as having increased the Boron.


2007 Goldwing + Rotella T 15W-40 CJ-4. It works; I'm happy.
Re: Cheat sheet for newbies reading UOA's [Re: TucsonDon] #1811156 03/10/10 07:55 AM
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widman Offline
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Boron is basically an anti-oxidant Has some anti-wear in different cases. You won't see a decent group I oil without it, but it can often be left out of group II, group III, or traditional synthetics.

Here is one of the most complete wear metals charts I've seen in a while
Wear Metals guide in PDF

Re: Cheat sheet for newbies reading UOA's [Re: widman] #1852888 04/11/10 07:42 AM
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I like the report, Im gonna get a degree in chemistry someday. Im glad someone out there knows how to make all those elements stay together for 500k miles. Me, I just want it to run right, bottom line. amen


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Re: Cheat sheet for newbies reading UOA's [Re: CourierDriver] #1853472 04/11/10 05:38 PM
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Re: Cheat sheet for newbies reading UOA's [Re: Steve S] #1897854 05/20/10 06:07 PM
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widman Offline
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One more thing. A lot more engines are being assembled these days with Moly rings. Ring wear will show up as or with the moly that might be used as an antiwear/antioxidant.

Condemnation limits vary per engine and engine construction. Those that are published (CAT, Cummins, Detroit, etc.) are extremely high and not close to what is obtainable.

Re: Cheat sheet for newbies reading UOA's [Re: Bambam] #2333676 07/31/11 10:06 PM
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This is not bad but what about what the numbers mean? I mean is a high number or low number better for each category?


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Re: Cheat sheet for newbies reading UOA's [Re: TucsonDon] #2389160 09/27/11 07:42 AM
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Originally Posted By: TucsonDon
I think Boron is becoming part of the additive pack of some oils ... Rotella CJ-4 comes to mind as having increased the Boron.


+1 After looking at some VOA results on different oils, PCMO and Diesel, BORON is becoming more of an additive in Synthetic and Dino oils.


I get by with a little help from my friends....listen with your eyes....it's the ONLY way to believe what you hear...
Re: Cheat sheet for newbies reading UOA's [Re: Bambam] #2658196 06/19/12 12:34 AM
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How about the different tolerances of each equipment. All factories have their own, so, to be sure of each UOA you should also know the different allowances or minimuns.

Re: Cheat sheet for newbies reading UOA's [Re: RWEST] #2757895 09/29/12 08:48 AM
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Originally Posted By: RWEST
So, to help out an oil-dork, what should the numbers be for a multi-vis, say, RTS 5-40? confused


Blackstones will give averages for most engine types for you to compare results to. For a 1.9 TD I would not be too concerned until the Iron was over 50 ppm, Aluminium over 10, Chrome or Lead over 5 and Silicon from the air filter over 20.

The 5W/40 figures for a UOA are as follows:
SUS Vis at 210F: 66 - 78
cSt Vis at 100C: 11.9 - 15.3
Flash in F: > 410
Fuel % < 2
Antifreeze: 0
Water% < 0.1
Insolubles: < 0.8
TBN: > 1 (Normal) >3 (Severe service)

The trend is as important as the actual figures for wear metals, as every engine is subject to different use and to complicate matters you might have a temporary particle streak occur and rebuilt or new engines produce different figures.

The car should be driven at normal speeds for half an hour plus before draining the oil and the sample taken mid stream into a clean container.


Last edited by skyship; 09/29/12 08:58 AM.
Re: Cheat sheet for newbies reading UOA's [Re: widman] #4490527 08/16/17 08:21 PM
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link is gone.

Re: Cheat sheet for newbies reading UOA's [Re: Steve S] #4490528 08/16/17 08:21 PM
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Link NA

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