Great questions, will be listening for answers as well. I do have one comment. Regarding the oils. I had the same inclination when I got my battery chain saw. Did not want to be flinging oil into the environment /my yard. Got a gallon of grape seed oil and gave it a whirl. Worked the first time but after it froze everything and I had to purge the filter and pump with penetrant and then real chain saw oil, plus scrub the whole thing down and replace the bar and chain. Just glad I didnt have to throw the whole thing in the landfill! Do yourself a favor, just get the correct oil. There’s a reason for the recommendations.