OK how do you tell if you have summer bar oil, I have read that they make diffrent oil but how do you know which you have or is it like if you don't buy winter oil assume it is summer oil?
What temps are summer oil ok to cut at? over 40 degrees, over 50 degrees?
I use the same oil year around; cold weather I cut it with 10 wt non detergent. So far haven't had any problems.opcorn: