I was at my local Stihl Dealer and bought a gallon of chain oil and it was $19.20, I think that is crazy. Bad enough I checked the last bottle I bought about a year of so ago and it was $13. I notice Husqvarna oil is only $12, which still sounds high but a lot less. On occassion I use recycled oil that I filter with coffee filters. I prefer to use the good stuff but the cost does seem to be unreasonable. I cut a lot and probably go through a couple of gallons a year.