800 is a fairly heavy viscosity as is Red Armor. If running 32:1 in cold weather, especially in a ported saw, be forewarned they will pull over hard. I’ve ran 3-4 gallons each of Red Armor and 800 last summer, they are both good oils and I would use them again. Dominator is as good or better at half the price, have run quite a few gallons of this in various saws. With the lighter viscosity of Dominator you can run 32:1 and it still tune correctly, even in a 4 mix, or an auto tune/mtronic saw. It will leave the internals the cleanest of the oils you listed using fresh good gasoline.