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Catalogue

Špecifikácia JASO

Špecifikácia JASO je norma stanovená Japonskou organizáciou pre automobilové štandardy (Japanese Automotive Standards Organization). Hoci pokrýva širokú škálu mazív, v našom kontexte je najčastejšie spájaná s olejmi pre motocykle a skútre. Pri motocykloch s takzvanou „mokrou spojkou“, kde motor, prevodovka a spojka zdieľajú jednu olejovú náplň, je nutné zaistiť špecifické trecie vlastnosti. Bežný automobilový olej by spôsobil preklzávanie spojky. Norma JASO pre štvortaktné motory sa delí predovšetkým na dve hlavné triedy. Špecifikácia JASO MA je určená práve pre motory so spoločnou náplňou pre spojku. Zaručuje, že olej má dostatočný koeficient trenia, aby spojka nepreklzávala. Táto trieda sa ďalej delí na MA1 a MA2, ktoré jemnejšie rozlišujú úroveň trenia, pričom MA2 poskytuje najvyšší trecí výkon pre športové a vysoko zaťažované stroje. Naopak špecifikácia JASO MB je určená pre motory, kde spojka nie je mazaná motorovým olejom, čo je typické pre skútre s automatickou prevodovkou a suchou odstredivou spojkou. Oleje MB majú nízke trenie pre zníženie spotreby paliva a nesmú byť použité v motoroch vyžadujúcich normu MA. Pre dvojtaktné motory existujú špecifikácie JASO FA, FB, FC a FD, ktoré klasifikujú oleje podľa ich mazivosti, dymivosti, čistoty piestu a schopnosti zabraňovať upchávaniu výfukového systému. Najvyšší štandard predstavuje špecifikácia FD, ktorá zaručuje najlepšie čistiace schopnosti a nízku dymivosť. Výber správnej špecifikácie JASO je určený výrobcom vozidla a je vždy uvedený v užívateľskej príručke.

Ponuka motorových olejov

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