optimal ratio is 25:3:21. Close enough ratio is 8:1:7. So ratio in reference sheet (5:1:7) is out dated, wube made changes to this in past update. [https://wiki.factorio.com/Oil_processing](url)
optimal ratio is 25:3:21. Close enough ratio is 8:1:7. So ratio in reference sheet (5:1:7) is out dated, wube made changes to this in past update.
https://wiki.factorio.com/Oil_processing