Cheapest Diesel in St Marys now

Diesel

259.8 c/L

Shell Reddy Express St MarysSt Marys · 2.2 km

Cheapest of 2 in St Marys

3.1 under the St Marys average

Unleaded 91

213.8 c/L

Shell Reddy Express St Marys

Cheapest in St Marys

1.1 under the 214.9 average

Lower within 10 km: 251.9 c/L, 1.6 km away, at EG Ampol Werrington

Updated · same price since Fri 7:20 am

Forecast: Likely to fall. Estimate only: prices may edge down about 3.5 c/L by Sun 22 Nov.

$1.86 less on a 60 L fill than the St Marys average.

Directions to Shell Reddy Express St Marys

More about this price

: St Marys diesel averages 262.9 c/L today; the cheapest is 259.8 c/L at Shell Reddy Express St Marys, 3.1 c/L under the average.

cheapest
this price
St Marys average
262.9 c/L
dearest
265.9 c/L

Prices for every fuel: Every fuel in St Marys

$4.38 less on a 60 L fill than the Sydney city average.

Sydney city average: 8.1 c/L lower than 7 days ago.

Is Diesel cheap in St Marys today?

Sydney: cheap for this month

Within 10 km of St Marys: 15.5 c/L lower than 14 days ago.

The Sydney city average is 0.2 c/L less than the day before and the lowest in the 30-day window.

How St Marys compares

The St Marys average for Diesel is 4.2 c/L under the Sydney city average of 267.1 c/L and 7.7 c/L under the Australia average of 270.6 c/L.

Source: FuelCheck

Have a docket or membership?

Cheapest Diesel in St Marys

2 stations · Updated

Discounts and deals in St Marys

3 prices

What 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.

  • EG Ampol Werrington · 1.6 km

    247.9 c/L

    Everyday Rewards Fuel Voucher

    4.0 c/L off: EG Ampol Werrington is 247.9 c/L with it, from 251.9 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).

  • Shell Reddy Express St Marys · 2.2 km

    255.8 c/L

    Coles Supermarkets Fuel Docket

    4.0 c/L off: Shell Reddy Express St Marys is 255.8 c/L with it, from 259.8 c/L at the pump.

    4 c/L after a $30 qualifying shop, valid for 4 weeks, up to 150 L at participating Shell Reddy Express and Coles Express sites.

  • Ampol Foodary Marsden Park · 8.7 km

    264.9 c/L

    NRMA Ampol Member Discount

    4.0 c/L off for NRMA members: Ampol Foodary Marsden Park is 264.9 c/L with it, from 268.9 c/L at the pump.

    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

  1. Shell Reddy Express St Marys St Marys · 2.2 km Since Fri 7:20 am 259.8Cheapest of 2
    61-63 Christie St, St MarysDirections
  2. BP St Marys (Forrester Road) St Marys · 1.3 km Since Fri 9:48 am 265.9
    120-128 Forrester Road, St MarysDirections

Is it worth driving further for Diesel?

Worth the drive

Driving 1.6 km to Werrington saves about $4.07 on a 60 L fill of Diesel today, after the fuel for the round trip in a medium car: EG Ampol Werrington sells it at 251.9 c/L, against 259.8 c/L at Shell Reddy Express St Marys.

60 L
  1. Werrington

    EG Ampol Werrington · 1.6 km away

    251.9

    7.9 c/L less · Save $4.07

  2. Colyton

    Pearl Energy Colyton · 2.2 km away

    252.5

    7.3 c/L less · Save $3.47

  3. North St Marys

    Speedway North St Marys · 0.9 km away

    256.5

    3.3 c/L less · Save $1.61

Straight-line distances from St Marys' centre. Round trip at 8 L/100 km; tolls and time not counted. Updated

Check a route of your own

Diesel price outlook

The Sydney Diesel outlook, shifted 0.8 c/L higher for local prices.

Next 7 days

Chart range
Shifted city average · 15 Nov
267.9 c/L
Model estimate · 22 Nov
264.4 c/L
Range 256.4–283.7 c/L

Diesel outlook for St Marys. The forecast moves from 267.9 c/L on 15 Nov 2026 to 264.4 c/L on 22 Nov 2026.

Source: FuelRadar (fuelradar.com.au)

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

Shifted city average · Range includes today

267.9c/L

Estimated range 267.9–267.9c/L

Model estimate · Range includes today

267.4c/L

Estimated range 266.3–269.1c/L

Model estimate · Range includes today

266.4c/L

Estimated range 264.1–270.4c/L

Model estimate · Range includes today

265.4c/L

Estimated range 261.9–271.8c/L

Model estimate · Range includes today

265.1c/L

Estimated range 260.5–274.7c/L

Model estimate · Range includes today

264.9c/L

Estimated range 259.2–277.7c/L

Model estimate · Range includes today

264.7c/L

Estimated range 257.8–280.8c/L

Model estimate · Range includes today

264.4c/L

Estimated range 256.4–283.7c/L

How we estimate prices

These estimates follow the Sydney 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 2026-11-15.
Dates covered
Sun, 15 Nov to Tue, 15 Dec
How certain is this?
Low model signal. This is not a measured probability of a correct price.
  • Recent reported prices in Sydney for this fuel grade.
  • Recent price movement, with its effect reduced further ahead.
  • The dated wholesale-price change used in this forecast.
  • 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 Sydney outlook dated Sun, 15 Nov.

Open St Marys forecast

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 91213.8c214.9c215.9c
Ethanol 10211.8c212.9c213.9c
Premium 95231.3c231.3c231.3c
Premium 98238.8c240.9c242.9c
Diesel259.8c262.9c265.9c
Premium Diesel267.9c267.9c267.9c

Get an alert when Diesel near St Marys hits your price

Pick a target price and the free FuelRadar app tells you when a station near you reaches it. Free on iPhone and Android.

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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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Compare fuel prices around St Marys

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St Marys fuel questions

2 questions

What is the cheapest diesel in St Marys today?

In St Marys, the lowest is 259.8 c/L for diesel at Shell Reddy Express St Marys. Within 10 km of St Marys, the lowest price is 251.9 c/L for diesel at EG Ampol Werrington (1.6 km away). FuelRadar updated these prices on 15 Nov 2026.

How do St Marys diesel prices compare with Sydney?

Within 10 km of St Marys, diesel averages 266.5 c/L, 0.6 c/L under Sydney's 267.1 c/L.

About these St Marys fuel prices

Prices: FuelCheck. Suburb boundary: Australian Bureau of Statistics (ABS), ASGS Suburbs and Localities, CC BY 4.0. 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.