Of course, but being a cheap arse Asian every time if I do go to a further away station I did the math using my car's average fuel consumption (12.5 - 13.5L/100km), the extra fuel it will use going the extra kms to that station compared to the closet one, the estimate amount of fuel I'll be putting in and the extra cost minus the difference in fuel price between the stations & overall if there is still a net saving I will go, otherwise I will go to my usual Caltex near Osborne Park.
BTW, I not sure if the other states have it, but the WA government have fuel watch website where it lists all the fuel prices for today & tomorrow so I use that to get all the prices of the main servos in my area before I do the math.