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Cheapest U91 Fuel Prices around St Marys, SA Today
As of 6 April 2026, the cheapest U91 around St Marys, SA is 223.20 c/L at United Melrose Park. Average across 27 stations is 224.40 c/L – down 20.6 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 223.20 cents per litre at United Melrose Park, 993-997 South 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 240.50 c/L. Mondays tend to be the most expensive at 253.40 c/L – a difference of 12.9 cents.
How many petrol stations are around St Marys?
FuelTrack tracks 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 United, U-Go, Ampol, Independent, Liberty. Compare prices across all brands to find the cheapest fuel.
Nearby suburbs
Prices from South Australia Government. View all South Australia suburbs. Compare fuel prices across Australia.