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#4673728 - 02/21/18 07:22 PM Blotter Spot Test
Emanuel Offline


Registered: 07/01/17
Posts: 183
Loc: Venezuela, South America
Is the fact that the center of the spot is clearer than the medium ring a good or a bad thing?

Both spots were taken at the same time, I wanted to compare 2 drops vs 1 drop.

288k miles 7AFE Corolla
2500 miles on Oil with 2 qts of Makeup






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#4673773 - 02/21/18 07:46 PM Re: Blotter Spot Test [Re: Emanuel]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
How did you make out on your engine repair?

Was the head gasket the only item needed?
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4673795 - 02/21/18 08:02 PM Re: Blotter Spot Test [Re: Linctex]
Emanuel Offline


Registered: 07/01/17
Posts: 183
Loc: Venezuela, South America
Originally Posted By: Linctex
How did you make out on your engine repair?

Was the head gasket the only item needed?


The head gasket was burnt between cylinders 1 and 2, my 100k miles timing belt had cracks so we bought a timing kit and replaced the camshaft seal and front crankshaft seal.

The coolant consumption is gone. Now I wanna see if oil consumption lowers because of the new seals.

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#4673867 - 02/21/18 09:05 PM Re: Blotter Spot Test [Re: Emanuel]
tig1 Offline


Registered: 01/03/09
Posts: 13655
Loc: Illinois
Here is a site that may help you with the "One Drop Test". I do the one drop test usually around the 7K mark of my usual 10K OCI.

http://www.gwrauto.com/One%20Drop.htm


Edited by tig1 (02/21/18 09:06 PM)
_________________________
2007 Ford Fusion 227,000 miles
M1 0-20 EP
2017 Ford Fusion 49K
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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#4674003 - 02/22/18 01:43 AM Re: Blotter Spot Test [Re: Emanuel]
zeng Offline


Registered: 09/01/15
Posts: 2183
Loc: Malaysia
Originally Posted By: Emanuel
Is the fact that the center of the spot is clearer than the medium ring a good or a bad thing?

Clear and whitish center spot is a good thing as it indicates low levels of contaminants,
BUT observance/presence of medium ring (of about 8 mm annulus) is a 'bad' thing as it indicates commencement of dispersancy failure.
What's the oil spec in question ?

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#4674056 - 02/22/18 06:40 AM Re: Blotter Spot Test [Re: zeng]
Emanuel Offline


Registered: 07/01/17
Posts: 183
Loc: Venezuela, South America
Originally Posted By: zeng
[quote=Emanuel] BUT observance/presence of medium ring (of about 8 mm annulus) is a 'bad' thing as it indicates commencement of dispersancy failure.
What's the oil spec in question ?


4 qts of Motorcraft 15w40 CJ4 with 2 qts of Makeup Oil of Venezuelan 15w40 CI4

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