Oil for 1, 2, 2.5 and 5 gallons or 1 to 20 liters of gas at 50:1, 40:1, 32:1 and 25:1.
Gas in
Gallons
Liters
Gallons
Liters
Gallons
Liters
Fl oz of 2-stroke oil to add.
Oil per US gallons of gas (fl oz)
Gas
50:1
40:1
32:1
25:1
1 gal
2.56
3.2
4
5.12
2 gal
5.12
6.4
8
10.24
2.5 gal
6.4
8
10
12.8
5 gal
12.8
16
20
25.6
Estimates. Follow your engine manual’s ratio and the oil maker’s label. Mix outdoors in an approved fuel can, away from sparks and flames.
How it works
Find your can size on the left and your engine’s ratio across the top. The cell is the oil to add.
Example at 50:1: 2.56 fl oz for 1 gallon, 6.4 fl oz for 2.5 gallons, 12.8 fl oz for 5 gallons.
In liters at 50:1: 20 ml per liter, 100 ml for a 5 L can.
Frequently asked questions
How much oil for 5 gallons at 40:1?
16 fl oz (473 ml): 5 × 128 = 640 fl oz of gas, and 640 ÷ 40 = 16.
How much 2-stroke oil per liter?
20 ml at 50:1, 25 ml at 40:1, 31 ml at 32:1 and 40 ml at 25:1.
How do I mix 2-stroke fuel?
Pour the oil into a clean, approved fuel can, add the gas, close it and shake. Use fresh gas and mix only what you will use soon, as your oil’s label says.