why would it use more gas? that doesnt make sense at all. have you tried this? has anyone tried this? i think my next tank is going to be regular so that i can see how many miles i get on a tank versus the premium.

~Ryan 1999 T-Red SVT Contour 41k Miles #1701 / 2760 B&M, Custom Y-Pipe, Alpine HU, Pioneer 6x8's & 6x9's