Is E-85 corrosive?

#5
It's hygroscopic.. Attracts water, which in turn, causes rust and...???
This is the issue. As long as you keep cycling fuel through it and don't let it sit and absorb water, E85 is fine.

But it's a great solvent. So if there's a bunch of crud in your fuel system, it'll strip it off the walls of the tank or the lines, and it ends up in the carb or the injectors. Change your fuel filter after the first few tanks if you switch from gas to E85.

The rubber it supposedly attacks has usually already been compromised, too. The difference is gasoline will swell a rubber line or gasket that absorbs it, sealing the leak. E85 just runs out through the holes.
 

turbo89

Well-Known Member
#6
This is the issue. As long as you keep cycling fuel through it and don't let it sit and absorb water, E85 is fine.

But it's a great solvent. So if there's a bunch of crud in your fuel system, it'll strip it off the walls of the tank or the lines, and it ends up in the carb or the injectors. Change your fuel filter after the first few tanks if you switch from gas to E85.

The rubber it supposedly attacks has usually already been compromised, too. The difference is gasoline will swell a rubber line or gasket that absorbs it, sealing the leak. E85 just runs out through the holes.

THIS !!!
 

turbo89

Well-Known Member
#8
How long does e85 have to sit before it starts to absorb water? Week , month, 3 months ?

Too many variables .. it can sit for 6 months and absorb 0 .... or it can sit for 2 weeks and absorb ounces

IF its treated it can sit for a long while with ZERO impact