We have lost all ethonol free gas here. I have a couple of tunes I need to "fine" tune and I'm wanting to set them up for e10 only. I asked on the local board and everyone says they still use the same figures as they would for straight gas. I'm still learning this software, but I set up a histogram that has AFR error plotted against a VE table. In the tables, I have the AFR error listed as the NGK wideband sensor/14.12 to show my desired E10 fuel. Is this correct or am I losing my mind from all the reading I been doing??? Now somehow or another I read something else about the wideband reading on a scale for straight gas.....man I''m all confused.