malo sam kopao po Guy Croft forumu i našao zanimljiv post...
Loss of oil viscosity due to overfuelling
Postby Guy Croft » Fri Sep 08, 2006 11:19 am
Talking to the Retail Product Manager of Millers Oils for whom I am now a competition agent, he told me an interesting thing.
Millers recently did some sample tests with their 10W/60 fully synthetic race oil in a Subaru race car with 400 bhp or so. Competition engines should run rich for power, but turbocharged engines are frequently setup (rightly or wrongly!) very rich, in the hope of keeping them cool.
The new oil was degraded from a 60 viscosity to a 30 viscosity by fuel contamination after one event.
Now of course the gasoline will boil off eventually and the oil will recover its viscosity; that is if the engine doesn't suffer turbocharger or big-end bearing failure in the meantime. Makes you think, doesn't it?uglavnom, iako ovaj članak nema toliko veze sa mojim problemom i bojazni, zapravo još uvijek nisam načistu dali uzeti ipak i dalje 20K ili prijeći na gušće Racing ulje...
možda kompliciram....ali dok si ne ugradim ćukice u kabini, neću biti miran.....vozim konstantno na najvećim temperaturama...ventilator ne može dovoljno ohladiti motor...i neznam koja mi je temp. vode i ulja u tim trenucima, te također jako bitno koji mi je tlak ulja...
dali i dalje staviti 20K, pa na idućoj izmjeni otvoriti odozdo motor, provjeriti leteće, očistiti karter i sito, ugraditi sve te ćukice i onda voziti normalno i kontrolirati situaciju iz kabine....?
jer para za novu pumpu ulja nemam, niti mi ta nova pumpa može garantirati da opet neće zblokati....a namjeravam ovaj motor imati još dugo...
koju bi točno korist imao od stavljanja Racing ulja umjesto 20K u mom slučaju?
sorry što tlačim
