My Stihl HT 130 pole saw goes through a full tank of bar oil for a half tank of fuel consumed. I know that there isn't an adjustment for the chain oil flow on the pole saw but this seems to be a bit excessive. I'm using the Stihl orange bottle of bar oil if that should make a difference. Do you guys with Stihl pole saws have about the same ratio of fuel to bar oil flow consumption? I'm used to my Stihl saws still having oil in the tank when I run out of gas. Maybe this is just normal and I've not noticed it before (???). Thanks.