[brianhj]

Originally Posted by Luckrider

I also run e85 just about exclusively now. Oil changes come at 5k and I now have just over 15k on the clock (probably about 8k running e85). Fuel systems use ethanol safe materials due to the lack of e0 fuel. It just makes no sense for manufactures to try to design for markets with and without ethanol in the fuel, especially when we have very good thermoplastics that are ethanol safe to choose from. The only moisture to worry about would be in places where the fuel would sit contacting raw steel for extended periods of time. I myself burn through about 2-3 tanks per week now so that isn't a concern for me since the fuel is always moving.

The one issue I haven't tackled in depth are injectors. They are ethanol safe, but I remember seeing one technical paper from Chevrolet (if I'm not mistaken) about build up on the injectors. Beyond that, I can only find horrible inaccuracies from people spewing bullshit against ethanol. I am not sure about the specifics on this one, but my last attempt to find reliable information showing it to be an issue was fruitless. Ethanol burns slower, but more efficiently than gasoline and is a natural cleaning agent. This makes the combustion process more complete and cleans the engine. I would believe this would be the same for the direct injectors. As for the stock injectors themselves, the only thing I can conclude is that they appear to be ethanol safe. Their material composition (and chrome plating) should easily be able to withstand the higher e%.

Beyond just the people running e85 in this platform, realize that there are other cars on the road with many more miles that started out as regular gas sippers and have been switched over to corn burners with many more miles and no issues.

What kind/viscosity oil do you use?