I don’t have an e85 station in my state. I bought VP X85 and then later tried VP C85. I bought a VP 5 gallon fuel container and would fill up with 93, I forget what it was to make E30 in 5 gallons, maybe 3 gallons of 93? Anyway, then I would add in the race E85 and that was my premix. For a daily this would be extremely annoying, but it was fine for me at the time. I got a test tube and every time it was more like E40 or slightly higher. Never had a problem with it. I bought an ethanol sensor but I’m not sure I’m going to use E85 anymore. Considering changing to MS109. No mixing. Supposed to be the same power. Since I have to buy my E85, might as well just buy MS019 instead. I can start tuning with just 93. Add in 100% meth. Tune with 93 and meth. Then change over to MS109 and meth. This probably isn’t very helpful information. Lol