40 to 1 Fuel Mix Chart

Forty to one (40:1) is a pretty easy 2 stroke ratio to calculate, you simply multiply the litre amount by 25.

To make it easier you can use the following old school reference chart.

Fuel (L)Oil (mL)
125
250
375
4100
5125
7.5188
10250
15375
20500
25625

If you’re looking for something to help with other ratios and remind you how old your fuel is, please take a look at our app for iPhone and Apple Watch on the front page?

2 stroke mix app iOS Containers cutout - light mode