Since I'm cutting turning blanks, asking here sounded right I have a 40:1 mix chainsaw. The 2 cycle oil bottle (Pro-mix) is 6.4 fl oz that says it will mix for 16, 32, 40 and 50:1. It also says "Add entire bottle for 2 gal of gas." Soooooo...in a 2 gal can, with 2 gal of gas, how freakin' much oil do I use for a 40:1 mix
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