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TC mentions, in a thread about Wright Sentar, a failed hydro pump due to not using synthetic oil. He shows pics of failed parts. Is there good evidence that synthetic is the way to go in hydros?
Non synthetic oil requires viscosity modifiers (essentially liquid rubber) in the additives package to maintain viscosity with changing temperature. Full synthetics (versus synthetic blends) are able to maintain their viscosity without the modifier. Viscosity modifiers start breaking down with high temperatures and form sludge and loss of viscosity - this will shorten hydro life dramatically. Don't trade oil cost for hydro life - use synthetics when called for.Armando Conti said:TC mentions, in a thread about Wright Sentar, a failed hydro pump due to not using synthetic oil. He shows pics of failed parts. Is there good evidence that synthetic is the way to go in hydros?
I have a Ferris and it requires 5-50 synthetic.Armando Conti said:The unit is a Ferris dual hydro 48, which calls for straight 30 or 20. No mention of synthetic or not. I don't know if I've seen straight weight synthetic. I think I'll stick with regular oil unless I see a straight weight synthetic.