hank1510
Member
Some of this is right…I don’t mean to thread jack, so here’s a short answer.
Use E85 if you want some extra power and reduced mileage, I plan on pumping it in before I tow something.
Use as close to ethanol free if you want maximum mileage and don’t drive frequently.
Non-Ethanol gang will bang the “ethanol doesn’t provide more power drum” but diesel and ethanol users know, there’s more kinetic energy stored in diesel and ethanol than regular gasoline.
Unfortunately, ethanol turns to water way to fast, hence the pump and pull plan I have.
E85 has higher octane, near race fuel. The timing can be advanced further, but I’m not sure Ford fully uses this to their advantage. Is there a stock dyno compare?
Ethanol has less stored chemical energy than other fuels. Diesel has the most, gas, then ethanol. That’s why you need a greater volume of ethanol for the same amount of power.
Ethanol doesn’t turn into water, it’s getting it from the moisture in the air in the fuel tank. Water blends better with ethanol than gas, which floats on top of water. When the temperature drops the moisture “rains” into the fuel. It’s like how fog, frost, or clouds form. This is why you keep your tank full in winter.
I had a Volt (PHEV), and they pressurized and sealed the tank to store fuel for a long period of time before use. I think it waited a year to force running the engine to burn it.
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