hm, zaujimave, vseobecne je synteticky olej oznacovany ako vyslovene nevhodny pre zabeh, z uz spomenutych dovodov. rovnako, vseobecne sa odporuca vymena oleja ovela skor ako pises, 500km aj menej, dovod je ten ze do prvych cca 500km vyprodukuje motor najviac kovovych castic a nevidim dovod pouzivat kontaminovany olej dalsich 3000km... vsetky uvedene odkazy pojednavaju aj o intervale prvej vymeny oleja, takmer vzdy je to okolo 500 mil...
toto je velmi dobra stranka ohladom zabiehania motora
http://www.mototuneusa.com/break_in_secrets.htm
dalsi dobry dokument, dokonca s vysvetlenim pouzivania syntetickeho oleja na zabeh.
http://www.stealth316.com/2-breakin.htm
dalsi dobry odkaz
http://www.ntnoa.org/enginebreakin.htm
a citacia z neho:
"If the wrong type of oil is used initially, or the break-in is too easy, rings and cylinders could (read will) glaze and never seal properly. A fresh cylinder wall needs some medium to high engine loading to get the piston rings to seat properly for good compression but make sure you don't lug or overheat the engine. Use high quality, low viscosity oil (Valvoline 30 weight), no synthetics, too slippery. If synthetics are used during initial break in the rings are sure to glaze over.
vysokoodborny clanok venovany zabehu roznych motorov s velmi presnou klasifikaciou olejov a citacia s neho:
http://www.estevancomp.ca/marshall/mech ... cedure.pdf
Synthetic Motor Oils
The introduction of synthetic motor oils dates back to World War II and they are often described
as the "oil of the future." Synthetic oils are man made, manufactured in a laboratory rather than pumped out of the ground and refined. They offer a variety of advantages over natural oils from better fuel economy, stability over a wide range of temperatures and operating conditions and
longevity.
However, the use of synthetic engine oils is not recommended for the "break-in" period. Its outstanding ability to reduce wear by virtually eliminating friction between moving components is
not desirable for a "break-in" oil. Certain predictable amounts of friction are required for proper "break-in" of piston and piston rings. AERA does not recommend the use of synthetic engine oils
for the first 5,000 miles of service. Thereafter it is up to the vehicle owner to weight the cost of more expensive synthetic motor oils, manufacturer's oil classification recommendations and drain intervals.
vseobecne sa da povedat, ze synteticky olej je mozne pouzit na zabeh noveho moderneho motora s velmi presnym opracovanim valcov a kruzkov. pre zabeh po vybruse ci honovani je vsak synteticky olej vseobecne vyslovene neodporucany, napr. aj priamo firmou Redline, ako je spomenute v uvedenom clanku (
http://www.stealth316.com/2-breakin.htm ), posledne dva odstavce sa venuju cisto otazke syntetickeho leja pre zabeh.
takisto nazory na interval vymeny oleja sa zbiehaju na cisle okolo 500km/mile, nechat prvy olej v motore 4000km je podla mna zmarenie dobrej go...
nepochopil som presne aky olej pozivas, najprv si napisal
já pro záběh u Super používám 20W50 motul 300V ( 100synsth - neplect s plnou syntetikou
potom pises
již nekooik let 100%syntetický ( olej vyrábený chemickou syntézou bez přítomnosti minerální složky ) od Motulu.
takze je ten olej synteticky alebo nie?
moj nazor (a nazor asi vsetkych serioznych dokumentov ktore som mal moznost prestudovat)je, ze po honovani urobenom beznym sposobom a kvalitou je pouzitie plne syntetickeho bezneho oleja (0W, 5W) navodom na velmi vysoke riziko vytvorenia glazury a nechat ho tam 4000km....no to je jedno, pretoze glazura sa da odstranit jedine novym honovanim, takze preco neurobit go znova...
moj nazor ostava rovnaky, na zabeh motora (konkretne ca18det) je synteticky olej vyslovene nevhodny a jeho vymena je nutna co najskor, 500km je (nielen moje) moje odporucane maximum, inak je velmi vysoke riziko opakovania honovania.
dokumenty ktore som uviedol (a kopec dalsich) podavaju dostatocnu a presnu informaciu o tom, ako motor zabehnut, aky olej pouzit a kedy ho prvy krat vymenit a ja nemam ziadny dovod o tom pochybovat.