Definitely AVOID ESSO's gas (at least here in Ontario/Quebec). The absolute worst fuel economy on my Ti has been with their gas.
Try one of the others like Shell/Ultramar (although I primarily use Petro-Canada and Pioneer (not sure who supplies them) here in Ottawa).
Originally Posted by ricomtl
that's exactly what I was planning to do - travelling from Montreal to Ottawa over the weekend, however 4 adults in the car!