1L 2-Stroke Mixing BottleSimply fill the mixing bottle with fuel up to the 1000 CC line marked on the bottle, then fill the measuring cup that comes stored in the lid up to the 20 CC line with a good quality two stroke oil, pour the contents into the mix in bottle, screw the lid into place and shake well. Ideal for brushcutters, trimmers, chainsaws, and lawnmowers where the manufacturer stipulates that a 50: 1 ratio is required.