Shurflo pumps and resisting methanol

[dsmtuned]

For those of us with homebuilt systems, does anyone know how methanol affects the Shurflo pumps? The pump has a warning that says "no flammable liquids," but I don't know if that is actually because the pump can't handle them, or because they were marketed as a water pump.

Does anyone have experience with running a 50/50 mixture of methanol and water with Shurflo pumps?

Thanks!