In general, I have found bar oil to be some what sticky, get it on your hands and it takes a bit of wiping to get off, heavy gear oil is some what the same in that regard.
As to how much your saw uses, well, most saws I have used it was a 1 to 1 ratio, tank of gas to tank of bar oil. One Stil I had used a little more bar oil then that, the 280xp Husky used less, the latest Echo Timber Wolf also less. The older saws from my younger days don't remember, but refill gas --refill bar oil.
Some saws have an adjustment to control bar oil flow.
Yes, I have used engine oil, (not used) for bar oil, if short of bar oil.
I got a pail of way oil from Napa some time ago, about 200 + dollars now.
Just seen 140mower post, yes it is a difficult job for bar oil, mostly seems to come of the tip as change of direction.
As to how much your saw uses, well, most saws I have used it was a 1 to 1 ratio, tank of gas to tank of bar oil. One Stil I had used a little more bar oil then that, the 280xp Husky used less, the latest Echo Timber Wolf also less. The older saws from my younger days don't remember, but refill gas --refill bar oil.
Some saws have an adjustment to control bar oil flow.
Yes, I have used engine oil, (not used) for bar oil, if short of bar oil.
I got a pail of way oil from Napa some time ago, about 200 + dollars now.
Just seen 140mower post, yes it is a difficult job for bar oil, mostly seems to come of the tip as change of direction.