Originally Posted by
InterTD6
For me it comes down to the economics, using my ms660 for a week solid, cross cutting & ripping I will use 30 lt of fuel & 12 lt of oil for the bar. By not using bar oil at $2 a lt more I could buy a new bar every 6 weeks of use, which I don't, I just have a saving. Bars & chains get hot but untill the point where smoke starts appearing off the chain there isn't a problem, keeping the chain sharp, bar rails square & correct groove width has the greatest effect on bar life rather than what oil you run.
regards inter