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Call me old fashion, but i'd much rather stick to my valvoline or castrol.
I had the same junk on the bottom of 5 Valvoline Durablend bottles in 1996.
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Call me old fashion, but i'd much rather stick to my valvoline or castrol.
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I found this item on the Lube-Tips website. It is referring to industrial lubricants, but the same is probably true for motor oils.
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Q & A: Stored Oil vs. In-service Oil Life
"I heard that oil has a shelf life of one to two years, but oil in service can last for several years. How is this?"
What you have alluded to is true. Oils do have a fairly short shelf life compared to the length of time they can last in service, if properly maintained.
The issue here is additive solvency as it is commonly referred to. Chemically speaking, "additive solvency" is a bit of a misnomer, as many additives are mixed or suspended, rather than dissolved in the base oil. When the lubricant is stored for an extended time, the additives can settle out. This is particularly true of lubricants that have high additive treat rates, and leaving such oils sitting for extended periods can leave a thick sludge at the bottom of a drum. The problem is exacerbated by base stocks with a high nonpolar content, given that many additives are polar in nature.
Using the oil effectively keeps the additives well mixed. If you can limit particulate and moisture contamination to the minimum you will avoid particle scrubbing, water washing and other destructive depletion reactions. As a result, your oil will likely last for a substantially longer time than its shelf life.
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called PENNZOIL tech on this issue , said there is extra addative pack in the PLATINUM , which causes the fallout and not to be concerned . Also , stated you can shake bottle violently and wouldn't help to mix to consistency . Perhaps a paint shaker might work , if yeh have one onhand or go to nearest home improvement or paint center .![]()
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I should have a bottle or two left from the BOGO offer... I will check this morning.
Jokes aside, I feel the issue is serious. I'm surprised Johnny really didn't chime in which a more meaningful post, although he is not obligated to .... uhmm?
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Dr No:Kiefer in what way did pennzoil make you have to take back your expidition?![]()
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That stuff is like API SG. Anyway, my PZ bottles from yesterday drained clear, dated 2007.
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Dr No:Kiefer in what way did pennzoil make you have to take back your expidition?![]()
OK...looks like someone didn't get it...that OK..i'm sure someone will re read the post, look at my screen name, and fill you in![]()
Everyone says that they've 'seen this in valvoline' and other oil, but i've never seen a picture. if this were common, and all you guys have seen it, i'm sure i would of seen pictures elsewher.
Also, even the AMSoil guys were worried about it.
..Just food for thouht.
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Dr No:Kiefer in what way did pennzoil make you have to take back your expidition?![]()
OK...looks like someone didn't get it...that OK..i'm sure someone will re read the post, look at my screen name, and fill you in![]()
Everyone says that they've 'seen this in valvoline' and other oil, but i've never seen a picture. if this were common, and all you guys have seen it, i'm sure i would of seen pictures elsewher.
Also, even the AMSoil guys were worried about it.
..Just food for thouht.
I re-read your post, and looked at your screen name, and still I can't figure out what Pennzoil had to do with you having to get rid of your Expedition.
Perhaps you are famous, and there is a story behind your fame that someone will fill us in on....?