I wouldn't even bother considering changing the blend of fuel if used daily tbh, its too much hassle. Methanol is also illegal to use on the road over here as it gives off poisonous gas when burnt, I dare say its different anywhere else. You also have to start measuring fuels by weight rather than volume because the volume of fuel changes with temperature, hence if you go fill up early in the morning you will actually get more fuel in your tank than if you filled up at 1pm. I would stick with regular pump fuel, if you do wish to try something, check out water or meth injection kits but the gain for road use is very minimal.