[Pete from Shawnee Mission]

"could be eating away at metal and plastic parts in gas station pumps"

Gee! They use metal and plastic in cars too, don't they?

[Constitution Day]

Any type of porous metal (zinc, aluminum, etc) will suffer corrosion when exposed to E85 ethanol.
The solution is to plate the metal. Electroless nickel plating is what our company uses on machined aluminum castings.

Similarly, E85 attacks rubber parts so specialized synthetic rubber compounds must be used for o-rings, gaskets, etc.