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Thread: motorna ulja...

  1. #1
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    Default motorna ulja...

    nadjoh ovo na cliosport forum pa reko da podijelim sa vama..
    meni se otvorishe ochi ne mogu prevodit, nadam se da ce vecina da razumije...


    Costs of synthetics vary considerably. The most expensive are the “Ester” types originally only used in jet engines. These cost 6 to 10 times more than high quality mineral oils.

    The cheapest synthetics are not really synthetic at all, they are dug out of the ground and not manmade. These are in fact specially refined light viscosity mineral oils known as “hydrocracked” oils.

    “Hydrocracked” oils have some advantages over their equivalent mineral oils, particularly in lower viscosity motor oils such as 5w-30 and 5w-40 and they cost about 1.5 times more than good quality mineral fractions. This is the “synthetic” which is always used in cheap oils that are labelled “synthetic”.

    So, why are these special mineral oils called “synthetic”?

    Well, it all came about from a legal battle that took place in the USA more than ten years ago. Sound reasons (including evidence from a Nobel Prize winning chemist) were disregarded and the final ruling was that certain mineral bases that had undergone extra chemical treatments could be called “synthetic”.

    Needless to say, the marketing executives wet their knickers with pure delight! They realised that this meant, and still does, that the critical buzz-word “synthetic” could be printed on a can of cheap oil provided that the contents included some “hydrocracked” mineral oil, at a cost of quite literally a few pence.

    So, the chemistry of “synthetics” is complex and so is the politics. The economics are very simple though.

    If you like the look of a smart well-marketed can with “synthetic” printed on it, fair enough, it will not cost you a lot; and now you know why this is the case, it’s really only a highly processed mineral oil.

    But, if you drive a high performance or modified car, and you intend to keep it for several years, and maybe do the odd “track day” or “1/4 mile”, then you need a genuine Ester/PAO (Poly Alpha Olefin) synthetic oil.

    These oils cost more money to buy, because they cost a lot more money to make.

    Very simply, you always get what you pay for, cheap oils contain cheap ingredients, what did you expect!

    znaci "ester/pao" su PRAVA sinteticka ulja a ovo PAO su obicna hidromineralna ulja (iako na kutiju pishe da su synthetic)

    Silkolene Pro S 5w-40 = ester/pao
    Motul 300v 5w-40 = ester/pao
    Redline 5w-40 = ester/pao
    Mobil 1 0w-40 = pao
    Castrol Edge Sport 0w-40 = pao
    Amsoil Synthetic = pao
    Fuchs Supersyn 5w-40 = pao


    tako da...
    mada odje rijetko ko ima high-performance motor i nema potrebu za tim.

    ali eto valja se znat.
    Quote Originally Posted by my name is ...
    izvini oli mi rec kako da neciji post stavim u signature ?

  2. #2
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    Default

    A ti bjese ono dizela vozis jel
    She is only here to annoy herself!

  3. #3
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    motul 300v u motore trpamo skoro svi , najjache je za tu namjenu , a shto se tice auta ja sam vjeran u mm volvu castrol magnetixu 5 full sintetika
    Risk , is what makes life worth living

    Never a failure, always a lesson!

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