Recent Topics
Maxima Pro Plus 20/50 syn bike oil
by Truckedup. 03/21/19 04:54 PM
CHAMPION COS 3593A **NEW** CUT OPEN
by 53' Stude. 03/21/19 04:28 PM
NAPA PROSELECT 21348 CUT OPEN
by 53' Stude. 03/21/19 04:21 PM
Atlanta No Nonsense Honda dealer
by DuckRyder. 03/21/19 04:16 PM
Echo (PAS) - Good, Bad, Other?
by GemStater. 03/21/19 04:06 PM
Serpentine Belt - When To Change?
by Propflux01. 03/21/19 03:08 PM
Magnetic Out, ST in at Wally Auto Care Center.
by csandste. 03/21/19 02:26 PM
One license plate in a Two-Plate State
by bunnspecial. 03/21/19 02:07 PM
TPMS Units Honda
by Chester11. 03/21/19 01:58 PM
Another brake question
by supton. 03/21/19 01:54 PM
BOUGHT WRONG OIL FILTER
by IBelieveinlube. 03/21/19 01:47 PM
miscible ester, using is as oil additive ?
by pep808. 03/21/19 01:23 PM
LT Oil Temps
by StillLearning. 03/21/19 12:44 PM
What kind of lug nut is this?
by LeakySeals. 03/21/19 12:38 PM
Need help finding a riding mower with $1,500 budget
by MetalSlug. 03/21/19 11:55 AM
Volvo 2.0 Turbo
by Ddub. 03/21/19 11:43 AM
Got a busted crankshaft!
by Chris142. 03/21/19 11:18 AM
Newest Members
Paperboy, Flinch, AlanGonzales, Jrealstreeter, DarkFrontier
67576 Registered Users
Who's Online Now
108 registered members (addyguy, 53' Stude, 240_Ed, 38Chevy454, 77GrandPrix, Aero540T, 14 invisible), 2,068 guests, and 67 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics286,203
Posts4,904,125
Members67,576
Most Online2,967
Mar 10th, 2019
Donate to BITOG
Hop To
Used oil analysis on a sitting oil #4672514
02/20/18 10:34 PM
02/20/18 10:34 PM
Joined: Jul 2017
Posts: 808
WA
OilUzer Offline OP
OilUzer  Offline OP

Joined: Jul 2017
Posts: 808
WA
I was going to get UOA on my previous oil change but have a couple of questions.

I drained the oil and it was sitting in the pan for about an hour. I then collected some in a clean pickle jar from the top of the pan (i.e. did not stir the pan).
The jar has been sitting in the garage for 2 months in a dark place.

Is this a good sample? I am wondering about stuff settling in the pan also after a couple of months in the jar is it possible some things (fuel?) has evaporated???

Re: Used oil analysis on a sitting oil [Re: OilUzer] #4672562
02/20/18 11:27 PM
02/20/18 11:27 PM
Joined: Aug 2008
Posts: 3,463
Where the wind comes sweepin'
Reddy45 Offline
Reddy45  Offline

Joined: Aug 2008
Posts: 3,463
Where the wind comes sweepin'
It should be fine. Was there a cap on the jar?

I take oil samples using old pill bottles but don't always send them in so I have a shelf of just oil samples dating back for each previous 5k oci.

Re: Used oil analysis on a sitting oil [Re: Reddy45] #4672576
02/20/18 11:44 PM
02/20/18 11:44 PM
Joined: Jul 2017
Posts: 808
WA
OilUzer Offline OP
OilUzer  Offline OP

Joined: Jul 2017
Posts: 808
WA
jar has a cap. how about stuff settling in the oil pan sitting for an hour ... is that ok?

Re: Used oil analysis on a sitting oil [Re: OilUzer] #4672578
02/20/18 11:47 PM
02/20/18 11:47 PM
Joined: Dec 2016
Posts: 8,017
Waco, TX
Linctex Offline
Linctex  Offline

Joined: Dec 2016
Posts: 8,017
Waco, TX
Originally Posted By: OilUzer
how about stuff settling in the oil pan sitting for an hour ... is that ok?


Yes, Because they centrifuge all the big stuff out anyway -
those particles are far too big to be vaporized in the plasma
so you'd never get a reading on them anyway.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Used oil analysis on a sitting oil [Re: OilUzer] #4672593
02/21/18 12:16 AM
02/21/18 12:16 AM
Joined: Jul 2008
Posts: 867
Maryland USA
rubberchicken Offline
rubberchicken  Offline

Joined: Jul 2008
Posts: 867
Maryland USA
This question is mentioned on the Blackstone FAQ, and they say you can send it in and it will still be valid. I personally tend to shake them up ahead of time.

Re: Used oil analysis on a sitting oil [Re: Linctex] #4672631
02/21/18 01:43 AM
02/21/18 01:43 AM
Joined: Oct 2012
Posts: 4,825
Taiwan
Ducked Offline
Ducked  Offline

Joined: Oct 2012
Posts: 4,825
Taiwan
Originally Posted By: Linctex
Originally Posted By: OilUzer
how about stuff settling in the oil pan sitting for an hour ... is that ok?


Yes, Because they centrifuge all the big stuff out anyway -
those particles are far too big to be vaporized in the plasma
so you'd never get a reading on them anyway.


So the sampling is OK. Its the analytical method that's questionable

Re: Used oil analysis on a sitting oil [Re: Ducked] #4673478
02/21/18 04:56 PM
02/21/18 04:56 PM
Joined: Dec 2005
Posts: 10,916
Upper Midwest
kschachn Offline
kschachn  Offline

Joined: Dec 2005
Posts: 10,916
Upper Midwest
Originally Posted By: Ducked
So the sampling is OK. Its the analytical method that's questionable

Perhaps, but it depends on the sample. When I did this in college we performed the analysis on both the raw and an acid digested sample. That gave an idea if there were any large metal particles in the sample.


1994 BMW 530i, 241K
1996 Honda Accord, 267K
1999 Toyota Sienna, 409K
2000 Toyota ECHO, 280K
Re: Used oil analysis on a sitting oil [Re: kschachn] #4674895
02/22/18 10:58 PM
02/22/18 10:58 PM
Joined: Jul 2017
Posts: 808
WA
OilUzer Offline OP
OilUzer  Offline OP

Joined: Jul 2017
Posts: 808
WA
Originally Posted By: kschachn
Originally Posted By: Ducked
So the sampling is OK. Its the analytical method that's questionable

Perhaps, but it depends on the sample. When I did this in college we performed the analysis on both the raw and an acid digested sample. That gave an idea if there were any large metal particles in the sample.


not sure if I understand what you guys are talking about.
I have never done a UOA. long story short, due to some issues/recall of American made engines (mine is the same engine but made in Korea and not recalled) I have decided to maybe do a UOA and see if there are any excessive metal ... do you think UOA is a good deal or not?

Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™