E10 gasoline is a mixture of 10% ethanol and gasoline. There is a lot of debate on whether or not use of this fuel has any advantages over 100% gasoline. The ethanol provides additional oxygen to the fuel mixture to increase the burning efficiency of the fuel. The ethanol is more expensive to produce but there is currently a Federal subsidiary on ethanol which causes it to be slightly less expensive. Ethanol contains less energy than gasoline so its use causes a reduction in mileage. Here in the U.S., the ethanol is made from a food source, primarily corn. So the net effect seems to be no change at the gas pump, higher taxes to fund the subsidy, and higher prices for food in exchange for a small reduction in emissions.
The federal government has passed legislation to make it mandatory to use ethanol in fuel, so most states are using this fuel currently. I have been asked recently about the compatibility of E10 gasoline with Fix. At a 10% ethanol concentration, Fix is completely compatible with E10 gasoline. Fix will retain its ability to provide carburetor and fuel injection cleaning, and intake valve deposit cleaning. Fix will also provide corrosion protection properties which can be important with E10 gasoline. The addition of ethanol can cause the fuel to pull moisture into fuel tanks and increase the chances for rust.
Fix is 100% compatible with E10 gasoline.