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#4752601 - 05/10/18 05:59 AM Used Oil Blotter Tests
Silk Online   content


Registered: 07/26/03
Posts: 4457
Loc: New Zealand
I've been ripping the top off the oil filter box and putting a drop of oil on it for sometime now, seeing results on mileage and time, sometimes oil type if I know what went in. Observations without a clue what I'm looking at, just curiosity and adding to my mental data base. Today something I've only seen on really wasted oil, stuff that's been in for 40,000km or more. Not a good photo, but wanted to catch it in the light to show no absorbsion in 2 days, it's just sitting on top of the cardboard with a small ring around it. It was in a 2008 Camry 4 cyl, changed before it's mileage on the sticker, so maybe over 10,000km, but not 15,000km. Caltex 10W-30 of some sort. The centre spot was on something well over it's OCI.




Edited by wwillson (05/10/18 07:01 AM)
Edit Reason: subject clarification

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#4752612 - 05/10/18 06:24 AM Re: Used Oil Blotter Tests [Re: Silk]
IMPALA08 Offline


Registered: 03/23/09
Posts: 18
Loc: peekskill, ny
Can you explain the process and what you are looking for in a bad and good sample.
Thanks
_________________________
2015 Subaru Forester 2.5 premium

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#4752621 - 05/10/18 06:49 AM Re: Used Oil Blotter Tests [Re: Silk]
andyd Offline


Registered: 09/25/04
Posts: 7001
Loc: Marshfield , MA
Heh heh. The back of the filter box top was my log book for the BMWs. Every oil change date miles, and other parts. Fit nicely between the washer tank and the right fender. When it got too thick, I tied the inch thick bundle together and tossed it the glove box
_________________________
'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline bulk 0w20 and ? filter

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#4752632 - 05/10/18 07:04 AM Re: Used Oil Blotter Tests [Re: IMPALA08]
Shannow Offline


Registered: 12/12/02
Posts: 39435
Loc: 'Stralia
Originally Posted By: IMPALA08
Can you explain the process and what you are looking for in a bad and good sample.
Thanks


http://www.machinerylubrication.com/Read/29353/evaluating-lubricant-dispersancy

The oil should "wet" the paper.

Hanging up and not doing so is bad mojo.

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#4752641 - 05/10/18 07:15 AM Re: Used Oil Blotter Tests [Re: Silk]
Virtus_Probi Offline


Registered: 06/25/15
Posts: 3934
Loc: New England
Any chance that is coolant sitting on top of the oil?
_________________________
2014 Forester XT, 80500 miles
Last Change;
Valvoline Full Synthetic 5W30 d1G2
Tokyo Roki 15208AA170 filter

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#4752657 - 05/10/18 07:36 AM Re: Used Oil Blotter Tests [Re: Silk]
zeng Offline


Registered: 09/01/15
Posts: 2146
Loc: Malaysia
I did it with a 70/80 gm printer paper for consistency, a filter box 'card' is probably too thick for me.


Edited by zeng (05/10/18 07:37 AM)

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#4752675 - 05/10/18 07:53 AM Re: Used Oil Blotter Tests [Re: Silk]
tig1 Offline


Registered: 01/03/09
Posts: 13587
Loc: Illinois
Here is a site that may help you with the one drop test. I do this at about 7K into my normal 10K OCI.

http://www.gwrauto.com/One%20Drop.htm
_________________________
2007 Ford Fusion 226,000 miles
M1 0-20 EP
2017 Ford Fusion 48K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and MC LV
M1 10-30 in all OPE
MC filters


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#4752680 - 05/10/18 07:56 AM Re: Used Oil Blotter Tests [Re: Virtus_Probi]
Shannow Offline


Registered: 12/12/02
Posts: 39435
Loc: 'Stralia
Originally Posted By: Virtus_Probi
Any chance that is coolant sitting on top of the oil?


Coolant was my first thought.

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#4752707 - 05/10/18 08:23 AM Re: Used Oil Blotter Tests [Re: Silk]
zeng Offline


Registered: 09/01/15
Posts: 2146
Loc: Malaysia
I would think there isn't any coolant.

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#4753411 - 05/10/18 07:59 PM Re: Used Oil Blotter Tests [Re: Silk]
bulwnkl Offline


Registered: 02/09/05
Posts: 1728
Loc: Arizona
Nevermind


Edited by bulwnkl (05/10/18 08:00 PM)

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#4753664 - 05/11/18 01:08 AM Re: Used Oil Blotter Tests [Re: Silk]
Silk Online   content


Registered: 07/26/03
Posts: 4457
Loc: New Zealand
A Ryco filter box lid is what I consistantly have at hand, and consistancy is best for results. I have found the Ryco Syntec filter box to be much better, but I don't have one on hand everyday. No good comparing results on several different sorts of medium.

No coolant problems, but I do think it's water, today it has absorbed and shiny on top. In early for an oil change, perhaps it's been short tripping and it's acumulated condensation ? It's just such a very bad example for a well maintained vehicle. I had another Toyota in the day before, same engine...no oil on the dipstick, sludge under the cap. I think it's drop test is the one with the dark centre, and actually looks pretty good.
_________________________
1987 BMW R65 - Penrite V Twin 20/50
2005 Nissan Expert - Gulf Western 10W-40
1996 Volvo T5 - Penrite HPR15 - 15W-60. Ryco syntec filter.

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