Premium Diesel prices in St Marys, SA

Postcode 5042: St Marys, Bedford Park, Clovelly Park, Pasadena and Tonsley.

Cheapest now

Cheapest Premium Diesel in St Marys now

250.4 cents a litre

U-Go St MarysSt Marys · 1.3 km

Cheapest of 2 in St Marys

Also the cheapest of 24 within 10 km.

Updated · same price since Sat 12:02 pm

Forecast: Likely to fall. Estimate only (yesterday's outlook): prices may edge down about 2.4 c/L by Sun 22 Nov.

Directions to U-Go St Marys

More about this price

: The cheapest premium diesel in St Marys today is 250.4 c/L at U-Go St Marys.

$7.32 less on a 60 L fill than the South Australia average.

Is Premium Diesel cheap in St Marys today?

Within 10 km of St Marys: 18.4 c/L lower than 14 days ago.

How St Marys compares

The St Marys average for Premium Diesel is 12.2 c/L under the South Australia average of 262.6 c/L and 18.2 c/L under the Australia average of 268.6 c/L.

2 Premium Diesel stations in St Marys · Source: SA Fuel Pricing Information Scheme

Have a docket or membership?

Cheapest Premium Diesel in St Marys

2 stations · Updated

  1. U-Go St Marys St Marys · 1.3 km Since Sat 12:02 pm 250.4Cheapest of 2
    1129-1131 South Rd & Southern AvDirections
  2. OTR St Marys St Marys · 1.0 km Since Sat 11:00 am 250.4
    1181 South RdDirections

Is it worth driving further for Premium Diesel?

No need to drive further

No nearby suburb sells Premium Diesel for less than 250.4 c/L at U-Go St Marys today; the nearest, Pasadena, is at 259.4 c/L, so driving further would not save on a 60 L fill.

  1. Pasadena

    OTR Pasadena · 1.3 km away

    259.4

    9.0 c/L more

  2. Marion

    OTR Marion · 1.8 km away

    254.4

    4.0 c/L more

  3. Mitchell Park

    OTR Mitchell Park · 1.9 km away

    254.4

    4.0 c/L more

Straight-line distances from St Marys' centre. Updated

Check a route of your own

Premium Diesel price outlook

The Adelaide Premium Diesel outlook, shifted 5.2 c/L lower for local prices.

Past 7-day estimates missed by about 4.6 c/L on average, about the same as assuming prices stay the same (4.7 c/L).

Next 7 days

Chart range
Model estimate · 15 Nov
254.5 c/L
Model estimate · 22 Nov
252.1 c/L
Range 239.3–271.0 c/L

Premium Diesel outlook for St Marys. The forecast moves from 254.5 c/L on 15 Nov 2026 to 252.1 c/L on 22 Nov 2026.

Source: FuelRadar (fuelradar.com.au)

Shaded area shows the estimated range.
Daily prices and estimates · Premium Diesel

Model estimate · Range includes today

254.5c/L

Estimated range 252.9–256.2c/L

Model estimate · Range includes today

253.4c/L

Estimated range 249.6–257.1c/L

Model estimate · Range includes today

252.3c/L

Estimated range 246.3–258.0c/L

Model estimate · Range includes today

252.2c/L

Estimated range 244.5–261.2c/L

Model estimate · Range includes today

252.2c/L

Estimated range 242.8–264.5c/L

Model estimate · Range includes today

252.2c/L

Estimated range 241.1–267.8c/L

Model estimate · Range includes today

252.1c/L

Estimated range 239.3–271.0c/L

Model estimate · Range includes today

252.1c/L

Estimated range 239.3–271.0c/L

How we estimate prices

These estimates follow the Adelaide price outlook, adjusted to the recent price level around St Marys. Individual stations can change at different times and by different amounts.

Source
Reported city-average prices and FuelRadar estimates, dated 2026-11-14.
Dates covered
Sun, 15 Nov to Mon, 14 Dec
How certain is this?
Low model signal. This is not a measured probability of a correct price.
  • Recent reported prices in Adelaide for this fuel grade.
  • Recent price movement, with its effect reduced further ahead.
  • Recent prices around St Marys, compared with the city average.
  • An estimated price range for the days ahead.

This chart estimates how prices may move. It does not show a price promised by the station or a schedule of daily changes. Market commentary provides background but does not set the chart prices. Check the reported price and update time before you drive.

How accurate is this?

Estimates follow the Adelaide outlook dated Sat, 14 Nov.

Open St Marys forecast

Compare fuel prices around St Marys

4 links

Discounts and deals in St Marys

2 prices

What Premium Diesel costs at the listed stations with a docket, club rate or membership. Every other price here is the pump price; members-only prices stay out of the averages.

  • U-Go St Marys · 1.3 km

    246.4 c/L

    Everyday Rewards Fuel Voucher

    4.0 c/L off: U-Go St Marys is 246.4 c/L with it, from 250.4 c/L at the pump.

    Normally 4 c/L after a $30 qualifying shop, issued for a limited redemption period at participating Ampol networks and U-GO stations (first 75 L at U-GO).

  • Ampol Foodary Edwardstown · 2.7 km

    246.9 c/L

    NRMA Ampol Member Discount

    5.0 c/L off for NRMA members: Ampol Foodary Edwardstown is 246.9 c/L with it, from 251.9 c/L at the pump. That is under the lowest pump price within 10 km of St Marys, 250.4 c/L at U-Go St Marys.

    4 c/L on Unleaded 91, E10 and Diesel and 5 c/L on Premium 95, 98 and Premium Diesel at participating Ampol Foodary stations, not EG Ampol. One fill every 24 hours, up to 150 L.

    NRMA terms, checked 14 Nov 2026

Every fuel discount

Every fuel in St Marys

Lowest, average and highest in the current reports. Open a fuel for its stations.

Reported fuel prices in St Marys
FuelLowAvgHigh
Unleaded 91193.9c197.7c201.4c
Premium 95210.9c214.9c218.9c
Premium 98216.9c220.7c224.4c
Premium Diesel250.4c250.4c250.4c

Get an alert when Premium Diesel near St Marys hits your price

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FuelRadar app Today screen with the fill-up call for Brisbane and the cheapest Unleaded 91 within 15 km
FuelRadar app fuel map with Unleaded 91 prices around Brisbane, each marked Cheap, Average or Pricey

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St Marys fuel questions

What is the cheapest premium diesel in St Marys today?

In St Marys, the lowest is 250.4 c/L for premium diesel at U-Go St Marys. Nothing within 10 km is lower. FuelRadar updated this price on 15 Nov 2026.

How do St Marys premium diesel prices compare with the South Australia average?

Within 10 km of St Marys, premium diesel averages 259.3 c/L, 3.3 c/L under South Australia's 262.6 c/L.

Are there 24-hour service stations in St Marys?

FuelRadar's opening-hours data marks 34 of the 62 stations within 10 km of St Marys with opening hours on file as open 24/7, including OTR St Marys, OTR Pasadena and U-Go St Marys. Check the station page before a late-night trip.

About these St Marys fuel prices

Prices from Suburb boundary: Australian Bureau of Statistics (ABS), ASGS Suburbs and Localities, CC BY 4.0 and SA Fuel Pricing Information Scheme, checked by FuelRadar.

FuelRadar is an independent Australian app. It does not represent, and is not affiliated with or endorsed by, any government or government agency.

How these figures are worked out

Update times vary by source and station. Check the update time before travelling and confirm the price at the bowser.