Ok... Ignoring the last few posts & attempting to get back on topic...
Winter fuel won't be doing you any favors so avoid it if possible. Ideally run a little extra oil (40:1 quality synthetic) & tune a bit rich.
Don't up the oil without tuning it for the mix you intend to run. Tuning should ideally be done with a tacho & in your case (new saw, hot running) set to a few hundred rpm below max.
Madsen's has some good directions on tuning by ear. In a pinch you could probably just turn the H screw OUT 1/8 of a turn. Your adjustment screws may be tamper proof, may have limiters on them, making adjustments may void your warranty & if you get it wrong you may wreck your saw.
Good luck