ethanol
Le Mans Master
Joined: Apr 2011
Posts: 6,284
Likes: 1,171
From: Hermosa
Not directly. Ethanol does has corrosive properties that may or may not be compatible with the rubber components of your fuel system. The accelerator pump in the carb would probably be the first victim. ethanol can slowly eat away the inside of the fuel hoses if they are not ethanol resistant, ie original equipment. If you've been running it and have not encountered any problems with your accelerator pump then it should be good to go.
Ethanol if left to sit for extended periods (greater than three months) will collect moisture and can go through phase separation in which case water and ethanol will rest/settle in the bottom of the tank or carb and corrode those surfaces slowly over time.
Using gas with ethanol may require a slightly richer fuel mixture if your close to lean currently.
Many people run it without significant issues. I avoid it in my Corvette. No problems with modern vehicles. If I store a vehicle for a period of time I do so without ethanol fuel in the tank.
Ethanol if left to sit for extended periods (greater than three months) will collect moisture and can go through phase separation in which case water and ethanol will rest/settle in the bottom of the tank or carb and corrode those surfaces slowly over time.
Using gas with ethanol may require a slightly richer fuel mixture if your close to lean currently.
Many people run it without significant issues. I avoid it in my Corvette. No problems with modern vehicles. If I store a vehicle for a period of time I do so without ethanol fuel in the tank.
Instructor
Joined: Jul 2013
Posts: 104
Likes: 15
From: Bennington VT
I installed a new Holley spreadbore carb in 2008 and had to replace all seals and accelerator pump last year. The ethanol ate the carb for lunch! I have been running non-ethanol gas ever since with no problems.
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
