Ethanol fuel additives

[SlamDunk]

Guys, anyone using these fuel additives with their E85? Especially for guys who store their racecars in the garage for off season period? (even for daily drivers). Would like to hear what you guys think of them for those who have experience with them.

VP M2 upper lube
http://streetautoparts.com.au/media/catalog/product/cache/1/image/600x600/9df78eab33525d08d6e5fb8d27136e95/v/p/vpm2-uplubess.jpg.jpg

Driven Carb Defender - Ethanol Armor Technology

http://www.speednik.com/files/2013/11/driven1.jpg

Red line Alcohol fuel lube
http://www.redlineoil.com/content/images/products/84.png

[skinkis]

Have used the Red Line product in my previous cars.
Hard to tell if they work or not, however, never had any issues that were fuel related.

Guess it's good for peace of mind. But could also do nothing, and be a waste of money.

[Aleo24]

I had my car off the road for about 8 weeks with 1/4 tank of pump e85. Drove it to work, it was a bit rough and the Powerfc would pick up "knock" when i started getting onto boost, i got some F10 from work, drove it 20 minutes and car started running good again.

I put one in every 4th tank.

[Tocchi]

Used VP M2 and redline products. Work well