I run a Stihl 036 with a 20" bar and chipper chain. I've always used whatever bar oil I had around, most recently the Stihl brand until I ran out last week. But someone gave me a couple gallons of "Poulan" brand bar oil, and it doesn't seem to lube the bar and chain adequately. The level of the oil goes down normally with use of the saw, but the lower part of the bar heats up and once even smoked it was so hot. [After about a twenty min. of hard cutting.]
I was/am using brand new chipper chain. I dumped out the Poulan oil I had in the saw and substitued Echo brand, and it works perfectly now under identical circumstances...in fact, I was even cutting on the exact same tree, a 30" diameter blue spruce. [My supplier was out of stock on the Stihl oil.] I have always figured "bar oil is bar oil." Is there a difference? Anyone else had this problem...I have definitely lessened the life of my almost new $60 bar.
I was/am using brand new chipper chain. I dumped out the Poulan oil I had in the saw and substitued Echo brand, and it works perfectly now under identical circumstances...in fact, I was even cutting on the exact same tree, a 30" diameter blue spruce. [My supplier was out of stock on the Stihl oil.] I have always figured "bar oil is bar oil." Is there a difference? Anyone else had this problem...I have definitely lessened the life of my almost new $60 bar.