Red Armor 2 Cycle Oil (5.2 oz - Makes 2 Gallons at 50:1)
Awsome saw can't beat the quality, for the price , we cut 50 cords of firewood a year, my 680s and 620s are my favorite saws, they just keep going. So I bought 2 more 620s
I really wanted to install it on my Son's DeWalt DCST825B (20V) but we couldn't get it to fit. So I installed it on my DCB606 (60V) and it is way better than the original head that DeWalt puts on. I have only used it for 1 trimming so far but it loads and bump feeds smoothly.
great price and fast shipping from saw suppliers, will order from them again
I know STIHL doesn't officially recommend switching away from the stock setup, but this conversion kit completely transforms the saw. The stock 1/4" setup always felt a bit sluggish and grabby, but with the SpeedCut Nano, the balance and feel are spot on.
It glides right through wood, self-feeds smoothly, and throws real chips instead of fine dust without bogging the motor down. It turns a hesitant top-handle into a total surgeon’s tool. If you run an MSA 161 T, this upgrade is a night-and-day difference!