Prices checked 4 min ago with SA Fuel Pricing Information Scheme (Fri, 6 Nov, 4:15 pm ACDT)
The cheapest Premium 98 near Ceduna right now is 269.9c at Ceduna Perrys. The average across 5 servos within 6 km is 273.5c, and the gap
between cheapest and dearest is
8.0c a litre, about $4.00 on a 50-litre fill.