You must follow the guide linked below before this one.
https://defusestudios.com/sgk-v2-added-burnt-fuel-item/
Add the highlighted nodes shown in the image below, location at the top of the image.

You must follow the guide linked below before this one.
https://defusestudios.com/sgk-v2-added-burnt-fuel-item/
Add the highlighted nodes shown in the image below, location at the top of the image.