thats the point. not a lot. I know the Manning road one lets you use em, but theyre normally atleast 4-5c higher anyway than the other BP's

I find BP Langford or Huntingdale normally the cheapes and no they dont accept vouchers.

IIRC you can ask at your local IGA that you shop at which BP;s have them or not, they normally have a poster somewhere with the 15-20 of them.. heh.