Damage to fuel components from ethanol

[dpetryk]

Has anybody experienced or suspected that your fuel injection system has been damaged by ethanol? I buy all my gas from Costco. In the last 4 months or so I have noticed a new sticker on the pumps indicating that the fuel may contain up to 10% ehanol. ABout that time, I noticed that all three of my cars were not running smoothly at idle. I had the adjust the CO to make them right. It seemed funny they all started to act up at the same time. One of my 420's got progressivly worse. It turned out that the fuel distributor had failed slowly. I did a post mortem and found that the diaphram (rubber & fabric) was shot. When I took it apart it was all wrinkeled up like there was a reaction to the fuel. Maybe that is normal but it sure looked like some other situations where I have used solvents on rubber parts and they started to swell up. I have opened up several fuel distributors and have never seen a diaphram in as bad a shape as this one was. I am sustpecting long term exposure to ethanol.

Anybody heard anything about it?