Article: Warranties void on cars burning E15, say automakers
From Consumer Reports Magazine, July 7th, 2011
The new orange label displays "E15" in large type and states that the fuel is for use only in 2001 or newer model-year vehicles or flex-fuel vehicles, and that it is illegal to use it in other vehicles or in power equipment such as lawnmowers.
In response to the release of the labels, nine automakers—including Chrysler, General Motors, and Toyota—wasted no time writing letters to Congress criticizing the proposal and noting that they will not honor warranties for older cars running on E15. The automakers say they are concerned about the effects of E15 on engines, fuel pumps, and other fuel-system components in cars that were not designed for it.