Ethanol can cause several types of damage to the engine in your vehicle.
Your vehicle's fuel intake components can gummed up or clogged.
In addition, ethanol fuel can cause damage to the fuel pump in your vehicle. Especially if you use E85 or E15 ethanol in these trucks.
They are not designed for flex fuel.
I do not know what type of fuel the OP used but wanted to make the forum aware of this issue.
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Ethanol is hygroscopic, which means that ethanol attracts and absorbs water moisture. Ethanol mixed gasoline fuels (E10, E20, E25, and E85) can readily absorb over 40 times more water than non-alcohol gas.
Phase separation occurs in E10 gas when it absorbs only 0.5% of water (3.8 teaspoons) per gallon of E10. When 0.5% of water is absorbed into the ethanol-gasoline blend, the bonded water and ethanol will separate and dissipate from the rest of the gasoline. The water and ethanol will drop out of the gas and you will be left with a layer of water on the bottom of the tank, this can cause the fuel pump to fail, which is why the fuel pump ids not covered under the power train warranty.
Hidden cost of burning ethanol fuel.