Cheapest fuel prices, trends and insights across Australia
Cheapest Diesel Fuel Prices around St Marys, SA Today
As of 6 April 2026, the cheapest Diesel around St Marys, SA is 296.90 c/L at United Melrose Park. Average across 7 stations is 306.50 c/L – up 15.1 cents over the past two weeks.
Prices from Victoria Government, updated every 15 minutes.
Diesel stations around St Marys
7 stations selling Diesel, sorted by price.
Fuel prices by type
7 fuel types available around St Marys.
Frequently asked questions
Where is the cheapest Diesel around St Marys?
The cheapest Diesel around St Marys, SA is 296.90 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, Tuesdays tend to have the cheapest Diesel prices around St Marys, averaging 299.70 c/L. Mondays tend to be the most expensive at 310.50 c/L – a difference of 10.8 cents.
How many petrol stations are around St Marys?
FuelTrack tracks 7 stations selling 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 4 fuel brands around St Marys including United, Independent, Liberty, Ampol. Compare prices across all brands to find the cheapest fuel.
Nearby suburbs
Prices from Victoria Government. View all Victoria suburbs. Compare fuel prices across Australia.