From PSU: “Ethanol in Far Cry New Dawn is a vital resource. You need it to upgrade your facilities at Prosperity, which allows you access to better weapons, better gear and allows you to train up your Guns For Hire.
In our how to get Ethanol fast guide, we looked at one particular way to get this resource quickly so you can upgrade your base from level 1 to 2, but lets explore the substance in more detail.”
Source: N4G PC Far Cry New Dawn Ethanol Guide – 3 Ways To Get This Vital Resource