loss of ower when using ethanol
when the air temp is 60 to 70 degrees and warmer my truck will lose power driving down the hiway when using ethanol.
Ethanol has a lot less energy than gasoline so your truck should have less power. What kind of power loss do you have and are you running straight ethanol?
In 91 the engine was not designed to run ethanol, when they made the ethanol blend know as E10 older engines lost lower and mileage ans some even ruined fuel pumps and rubber hoses, so some loss of power is normal when running E10, do not run E85 as this will ruin your engine. You may also have a fuel vapor problem, you should also check the routing of the fuel lines, make sure they are away from heat sources as much as possible, sometimes wrapping the fuel lines with heat resistant wrap helps in high heat conditions.
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