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Re: Bottle sediment; what is it, and should we worry? #52803 11/05/03 10:33 PM
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Bluestream Offline OP
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First reply is in from Shell:

"Thank you for your e-mail inquiry. The substance that appears at the bottom of the oil bottle is cause by trace amounts of moisture in the oil. Because of different temperature and humidity changes, moisture can develop in the oil and mixes with some of the detergent additive. The detergents in the oil emulsify this moisture and, if the bottle sits for a period of time, cause it to settle to the bottom. This is not unusual and will not affect the quality or performance of the oil. As soon as the engine reaches operating temperature, the moisture will evaporate through the crankcase ventilation system."


Sincerely,

Re: Bottle sediment; what is it, and should we worry? #52804 11/06/03 07:00 AM
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Robbie Alexander Offline
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quote:
Originally posted by Al:
*-* Surely there must be some on this board out there that has experience with the manufacturing of oil and what the stuff is ??? -*-

The stuff is the additive package.
There are several reasons why it can be there.
It could be there because there was TOO much additive package placed into the oil to maintain suspension.
It could be that the additive package has been in the oil too long and is falling out, and this can depend upon the oil... some in a few years and others in a decade or two.
IMO - that's what you have filters for. Don't worry. Man, do not worry "K", just don-t worry.
Pull your oil sample and go along like nothing happened...

Re: Bottle sediment; what is it, and should we worry? #52805 11/11/03 06:26 AM
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Bluestream Offline OP
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This is the reply from Chevron:

"No need to shake bottle. Occasionally a small amount of calcium carbonate will precipitate from fresh oil on standing. This will not impact the oil's performance in any way. The precipitate need not be transferred with the oil, but doing so will cause no harm."

Re: Bottle sediment; what is it, and should we worry? #52806 11/12/03 12:46 PM
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pgtr Offline
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Hey I just noticed this too - in Redline MT90 gear oil - the bottoms of the white bottles had some sort of sediment - everyone one of 'em after I emptied them all (about 8 bottles recently)

Darn good question. If you have to shake the bottles up before dumping in - then what happens when left to sit a while in an engine or transmission or whatever?

Re: Bottle sediment; what is it, and should we worry? #52807 10/04/05 04:53 AM
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satterfi Offline
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I've seen this in Redline oil, MTF and their AFT.

It's always bothered me a bit, but I just shake and serve and be on my way.

Today I saw the same thing in M1 5-40 that I was pouring in a couple of different engines.

I've never noticed this before in Mobil 1 products.

Do the M1 5-30 oils do this?

Re: Bottle sediment; what is it, and should we worry? #52808 10/04/05 05:12 AM
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simple_gifts Offline
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The stuff at the bottom of Redline oil bottles is premixed wear metals. It is added and then the guys at Redline lurk on the board and watch everyone fight it out. 2ppm of lead up from 1 ppm? Clearly it is causing TWICE the wear and should be viewed with appropriate contempt.

Re: Bottle sediment; what is it, and should we worry? #52809 10/04/05 06:44 AM
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bruce381 Offline
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quote:
Originally posted by simple_gifts:
The stuff at the bottom of Redline oil bottles is premixed wear metals. It is added and then the guys at Redline lurk on the board and watch everyone fight it out. 2ppm of lead up from 1 ppm? Clearly it is causing TWICE the wear and should be viewed with appropriate contempt.

[LOL!] [LOL!]

Most sediment is from absorbed moisture and/or additive fallout which includes over based carbonate and VII's settleing out.

As I stated somewhere else VII's are very bad "disolvers" and can also be the culprit the higher the PAO or GPIII content the worse additive solubility that is why esters or AN are added to "clear up" the oil sometime not enough has been added but not a big deal solubility or additive fall out has been around since they made dirt.
bruce

Re: Bottle sediment; what is it, and should we worry? #52810 10/04/05 08:24 AM
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Audi Junkie Offline
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Still waiting for a reply from Chevron on my "Goop". They claim they "stand behind their oils". We'll see.

Re: Bottle sediment; what is it, and should we worry? #52811 10/04/05 08:55 AM
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pitzel Offline
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Our late colleague, Stinky Peterson, basically, through his oil analysis lab, came up with some pretty good evidence to suggest that virgin motor oil is often dirtier than oil that has been in a crankcase and through a full-flow filter a few times.

Personally, I don't shake, and if there is stuff on the bottom of the bottle, it remains on the bottom of the bottle and not in the engine.

Re: Bottle sediment; what is it, and should we worry? #52812 10/04/05 02:18 PM
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T-Keith Offline
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While providing a wealth of info, Stinky never provided any proof that the particles he was seeing was dirt. They may have in fact been additives and not dirt. I'd go with the Chevrn and Shell, if you leave that stuff in you may be shorting yourself on additives.

Re: Bottle sediment; what is it, and should we worry? #52813 10/04/05 05:17 PM
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TallPaul Offline
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Don't look. Just shake and pour. That's the way I do it.

Re: Bottle sediment; what is it, and should we worry? #52814 10/04/05 08:41 PM
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kanling Offline
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With dino oils I've used, I have noticed that Valvoline and Castrol seem to have less sediment at the bottom of the bottle than other brands. I used to assume that meant they were better quality. Maybe its just because they have weaker additive packages so there is less to settle.

Re: Bottle sediment; what is it, and should we worry? #52815 10/06/05 07:50 PM
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bbcmat Offline
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Think about this stuff next time you pre-fill an oil filter.

MAT

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