nothing. I believe the real issue is the material the Pintle is made out of having a reaction with the ethanol. Best example I can think of is Flexfuel cars use specially designed injectors and fuel pumps to be able to handle E85. Our old cars are just not made for ethanol. And as BlackholeZ said below the swith mod shuts power off to the injectors when the car is off but you will still have fuel with ethanol sitting inside the lines and injectors just eating away at them.
"Do you guys put the key in "balls down", or up?" -BobbyT 10:28:19 03/06/09