Originally Posted by Ænema
E15 is fine. Fuel additives/treatments should only be used when the vehicle is being stored for more than a couple weeks at a time.
I have read several articles like this, http://laurenfix.blogspot.com/2010/0...-new-font.html
, and will wait for more testing before I would go with E15.
I believe that I saw an article that said BMW, among other manufacturers 8 or 9, the warranty would be invalid if e15 was used.
I just do not trust the government.