2 stroke oil

There seems to be a substantial negative impact on polyamide’s physical properties (after a relatively short soak in polyalphaolefin -PAO- oil as compared to a polyol ester -POE- oil.) Research article in question Figure 5 and 6 specifically, the tensile strength of the polyamide seems to...

Ok I have been looking for some top quality oil for my saws. I used stihl ultra and way to much Un burned residue and stinks. So I switched to dolmar synthetic burns much cleaner and smells ok. After reading some info I started looking into belray h1r...