Originally Posted by kawakx125
ethanol can and has been proven to be harder on seals and stuff in fuel systems of vehicles. it can eat certain rubbers pretty quickly. newer ones are designed with this in mind but older engines can have problems related to it. it's pretty standard around here to have at least 10% ethanol. the other issue i have with ethanol is there is less energy per gallon than straight gasoline, so you need more ethanol to make the same power. this translates to lower fuel mileage. granted at 10% its not a huge difference but it's still there all the same.
You've opened a can of worms now! I've said ethanol produces less energy on here before and was ridiculed.
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