Before this story, I must point out (regarding the previous article steam pressure vs temperature a

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The story of a group II base oils could be reduced and a couple of sentences, just Europe and the production of the BU does not go together. Practically it is in Europe (and the environment) produced in the style of "statistical error" ... almost.
Before this story, I must point out (regarding the previous article steam pressure vs temperature about BU) the Total for year 2011. announced significant capacity III group BU (something around 200 tons if I remember correctly). What's up with that either? Where's disappeared steam pressure vs temperature without a trace? Crisis? Anyway steam pressure vs temperature Total increase the capacity of the BS (base oil) oil which is just a story and dodaćiću is in this text.
Simply Europe is (to their own detriment but without major consequences) this technology "slept" and when you nodded off, encountered a nightmarish reality. The large capacity of the refinery and old for over 30 years, MINERALKA to your heart ask a modern oil or medication. In the last 15 years in Europe closed many (but MANY) plant that produced steam pressure vs temperature mineral BU (group steam pressure vs temperature I). Although there is an excess of production (and especially the capacity).
Group II base are practically what is referred to as HC (hydrocracked) BU. Obsolete classification allows further purified (hydrofinishing) "The solvent Neutral" BU "reaches" (distend) in this group. However, under industrial conditions it is shown nekomerijalnim and such oils are commonly + I group.
If the PAO and esters were "three classes above," steam pressure vs temperature but because of the price unattainable, then the HC base oils with only double the price (at the time of occurrence) caused a (r) evolution, which is admittedly quite bypassed the other side of the Atlantic, although it would have to areas of the former Yugoslavia could be proud of the fact that they are produced only a few years after the United States. The reluctance of European and inflated capacities are led to the view that imposed these oils good but not too much better and more expensive, but it is not even close to the truth, a time is just confirmed that they are completely incoherent and nebulous claims whose purpose steam pressure vs temperature was to maintain the "status-quo".
So fast prices have fallen by 50% over MINERALKA and that things are getting serious. It is further uozbiljavaju new requirements for the protection of the environment and we'd be able to (safely) say it's time MINERALKA (in the technological sense) even though the death knell (ironically and paradoxically) steam pressure vs temperature remain the leading BU to the end of the next decade, if not longer (by prediction of all relevant institutions, associations and manufacturers). steam pressure vs temperature
In the last ten years (especially 5-6) is increasingly common "technological paradox" that the BU is cheaper than mineral technologically inferior but "squeezing dry cornel" and avoiding new investments (the crisis) did not have MINERALKA retained (unjustified) leadership on both sides of the Atlantic. Analysis tells that the rate of oil HC moves in the range 0.9 to 1.2 compared to the SN BU or more of the narrower more: 0.95 to 1.1. This leads to the fact that the costs are almost equal (and even the additive does not need to separately change, or only slightly, so that the production of the more expensive steam pressure vs temperature pure oil HC only 5-20%). Consequence of the more frequent production of "semi-synthetic" exclusively on these oils, against which I do not mind, they are more "synthetic" than those with 15-20% of Group III base. And there is increasing (especially for freight vehicles) and used for the 15W-40 oil, 100% as a base (for example, ACEA E9) or by mixing the mineral. Even the 20W-50 used in part, although this phenomenon is not massive, at least not in Europe where the VG is used mainly for older cars.
In any case: Group II or BU is produced as a "by-product" during the manufacture of the base group III (especially in Europe) or the products in the USA and Asia. Leading manufacturers are (by far) Chevron (slightly II + Group) and Ex