# Fuel Preparation and Mixing

The Hybrid Module requires a mixture of 2-stroke oil and 91 octane gasoline, in a 25:1 fuel:oil ratio. The Hybrid Module is supplied with a standard mixing container that allows for mixing up to 5 Liters of fuel at a time:

\
![A white plastic container with green lids

Description automatically generated](https://2409858111-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F1kam0V1LiqOorrn8CMy4%2Fuploads%2FrMIYx9GdAvQMug9IJ50y%2F0.png?alt=media)

{% hint style="warning" %}
Mixing the fuel with the wrong ratio will cause the engine to run too lean (overheating) or too rich (weak performance)
{% endhint %}

**Recommended oil**: Red Line two-stroke racing oil (RED40605) or equivalent

1. Fill the main chamber with gasoline, up to the fluid level that is desired (it is recommended to stick to even integer values, such as 1L, 2L, 3L, 4L, or 5L).
2. Fill the oil chamber with 2 stroke oil, up to the matching line on the 25:1 marker. For example, if you added 5L of gasoline, fill the oil chamber up to the 5 mark.\
   ![A close up of a container

   Description automatically generated](https://2409858111-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F1kam0V1LiqOorrn8CMy4%2Fuploads%2F7nnQ7zPyUSZjzmSFUu6M%2F2.png?alt=media)
3. Make sure the oil chamber cap is applied and tightened.\
   ![](https://2409858111-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F1kam0V1LiqOorrn8CMy4%2Fuploads%2FzCNDdFrNIx3KNeFFIJaU%2F3.png?alt=media)
4. Make sure the main chamber cap is installed, and that the outlet spout is then tightened to form a good seal.
5. Tilt the mixing container forward until the oil flows up through the handle into the main chamber. Allow it up to a minute in this position to fully transfer the oil.
6. Move the mixing container back to a level position and gently shake the container to mix the contents.
7. The mixture is ready to use.
