This is to the OP your only getting 700 to 800 km for $250.00 in fuel in your mazda 3. Something must be wrong with your car. I am also thinking of selling my car for either a volt gen 1 or 2 or the prius prime if it ever is available here in the great white north. I currently drive a 2008 mini clubman its great on gas 55 to 60 bucks to fill and i get about 715 km to a full tank. Problem with the mini is started to have a lot of mechanical issue these last 2 years and i can only see it getting worse.