Bruce McFadden wrote:
Does anyone know if there is an STC for use of auto fuel in a PA32-260.
I've been unable to find one. At $3.30/gal for avgas at KBHM I've got
to stop the bleeding a bit.

The two auto fuel stc holders are Petersen and the EAA.

Neither of them do the PA-32 (or any twins to my knowledge).