Cheapest fuel prices, trends and insights across Australia
Cheapest U91 Fuel Prices around St Marys, SA Today
As of 20 May 2026, the cheapest U91 around St Marys, SA is 169.50 c/L at Solo Marion. Average across 27 stations within 5km of St Marys centre is 177.70 c/L – down 0.5 cents over the past two weeks.
Prices from South Australia Government, updated every 15 minutes.
U91 stations around St Marys
27 stations selling U91, sorted by price.
Fuel prices by type
7 fuel types available around St Marys.
Frequently asked questions
Where is the cheapest U91 around St Marys?
The cheapest U91 around St Marys, SA is 169.50 cents per litre at Solo Marion, 734 Marion Road.
When is the best day to buy fuel in St Marys?
Based on the past 4 weeks, Thursdays tend to have the cheapest U91 prices around St Marys, averaging 175.80 c/L. Saturdays tend to be the most expensive at 178.60 c/L – a difference of 2.8 cents.
How many petrol stations are around St Marys?
FuelTrack tracks prices at 27 stations selling U91 around St Marys, SA. The area has 7 fuel types available, including LPG, E10, U91, U95.
What petrol brands are around St Marys?
There are 5 fuel brands around St Marys including Independent, Liberty, Ampol, United, U-Go. Compare prices across all brands to find the cheapest fuel.
Nearby suburbs
Suburbs near St Marys with U91 prices, sorted by distance.
Prices from South Australia Government. View all South Australia suburbs. Compare fuel prices across Australia.