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Cheapest Premium Diesel Fuel Prices around St Marys, SA Today
As of 6 April 2026, the cheapest Premium Diesel around St Marys, SA is 296.90 c/L at U-Go St Marys. Average across 23 stations is 307.90 c/L – up 18.2 cents over the past two weeks.
Prices from South Australia Government, updated every 15 minutes.
Premium Diesel stations around St Marys
23 stations selling Premium Diesel, sorted by price.
Fuel prices by type
7 fuel types available around St Marys.
Frequently asked questions
Where is the cheapest Premium Diesel around St Marys?
The cheapest Premium Diesel around St Marys, SA is 296.90 cents per litre at U-Go St Marys, 1129-1131 South Rd & Southern Av.
When is the best day to buy fuel in St Marys?
Based on the past 4 weeks, Wednesdays tend to have the cheapest Premium Diesel prices around St Marys, averaging 299.20 c/L. Mondays tend to be the most expensive at 313.50 c/L – a difference of 14.3 cents.
How many petrol stations are around St Marys?
FuelTrack tracks 23 stations selling Premium Diesel 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 U-Go, United, 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.