[mike657894]

Back to your actual question. Yeah it will run pure ethanol. You will have to open the gav 100%. These are designed for multi fuel. That modern piece of s$%$ you have, its computer can determine if its 85% or 0-10% via a sensor and make map adjustments. No extra wear no extra tear just a much richer mixture to achieve good air to fuel mix. I run e-10 and achieved the advertised 65mph the other day on all stock parts. If my car is to sit more than a month I drain fuel. the problem with ethanol is that with heat up cool down the air inside the tank expands and contracts drawing airborne moisture into the tank that will attach to the ethanol and sink to the bottom of the tank. With agitation that water rides the ethanol back into the mix. To see this let some e-10 age for 6 months. look inside then shake and take a second look. Clean gas is a 40 minute round trip and 2-3x the price of the e-10. I drive my car too much for the run around. Also I drive enough to keep the fuel fresh.