Originally Posted by unfocused1
Another reason to use ethanol-free:
Fiberglass gas tanks will erode over time due to the presence of ethanol.
So far, driving 20 miles (city), the MPG/gas remaining indicator ROSE by 10MPG.
Ethanol is a waste.
Not if the correct resin is used. Several small experimental aircraft use fiberglass fuel tanks. The early one have problems with ethanol but when they figured out that better resins can be used, the problems go away.