Prices checked 1 min ago with SA Fuel Pricing Information Scheme (Fri, 6 Nov, 2:30 pm ACDT)
The cheapest Unleaded 91 near Ceduna right now is 247.9c at Ceduna Perrys. The average across 5 servos within 6 km is 250.7c, and the gap
between cheapest and dearest is
4.0c a litre, about $2.00 on a 50-litre fill.