Quote:
Originally Posted by 3rd_gear_Ted
Don't want this to go to PARF, but ask yourself why do we need Ethanol?
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Ethanol burns but does not leave the pollutants to the level regular unleaded gasoline does. It has high octane but burns very (too) fast so you blend it with lower octane 85 unleaded and the overall octane is 87(and up). Works fine but with a slight degradation to fuel mileage.
A few ways to blend the ethanol from blending at the refinery in a precise manner to 5000 gallon trucks splash blending with two hoses going into the truck.