Prestons Diesel price forecast
As of Sun 15 Nov, Prestons diesel averages 266.3 c/L, and FuelRadar estimates it will fall about 3.5 c/L to 262.8 c/L by Sun 22 Nov.
Diesel
More fuels (1)
Likely to fall
Estimate only: prices may edge down about 3.5 c/L by Sun 22 Nov.
- City average (estimate)
- 266.3 c/L
- Typical miss, a week ahead
- 4.6 c/L(no change: 4.9)
Sydney prices are typical right now
Cheaper than on 66% of the last 91 days. Usual range 254.2 to 283.4 c/L.
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Capital cities
City averages, Sun 15 Nov.
See the Prestons Diesel forecast in the app
The 7-day Prestons forecast, updated each day, and price alerts. Free on iPhone and Android.
App preview. Prices shown are example captures, not current reports.
Questions about the Prestons forecast
Prestons Diesel forecast explained
Where prices sit
Prestons uses the Sydney Diesel outlook, adjusted by -0.8 c/L for Prestons's own price history.
What usually happens next
Diesel prices do not follow a regular cycle, so the estimate follows the recent trend in Sydney's daily averages, blended with the latest five-day change in wholesale prices. That puts it down about 3.5 c/L by .
What could change it
Wholesale and crude signals: wholesale diesel in Sydney fell 9.8 c/L over the five days to , and Brent crude rose 3.5% to US$95.84 a barrel. The estimate already blends in that wholesale change.
What is the Diesel estimate each day, and can I download it?
Diesel: last 30 days and the next 7
Diesel: last 30 days and the next 7. The forecast moves from 266.3 c/L on 15 Nov 2026 to 262.8 c/L on 22 Nov 2026.
Source: FuelRadar (fuelradar.com.au)
Reported city averages to Sun 15 Nov, then the FuelRadar Sydney estimate dated Sun 15 Nov with its likely range shaded, shifted 0.8 c/L lower for Prestons's local prices.
First lower estimate: Mon 16 Nov, about 265.8 c/L (0.5 below today).
Day by day
Each day’s likely range and estimate, with the change from today’s 266.3 c/L (dashed line).
- likely 264.7 to 267.5 c/L265.8
- likely 262.5 to 268.8 c/L264.8
- likely 260.3 to 270.2 c/L263.8
- likely 258.9 to 273.1 c/L263.5
- likely 257.6 to 276.1 c/L263.3
- likely 256.2 to 279.2 c/L263.1
- likely 254.8 to 282.1 c/L262.8
When is fuel cheapest in Sydney?
Sydney has no regular price cycle: its Diesel prices follow wholesale costs, so they tend to move a week or two after the terminal gate price.
On Fri 13 Nov the national terminal gate (wholesale) price was 247.1 c/L and the Sydney city average 269.5 c/L, 22.4 c/L above it.
No weekday was the cheapest in most of the last 11 full weeks to : the Diesel weekday averages in Sydney were within 0.6 c/L of each other once the overall price movement is removed.
| Cheapest weekday | No set dayNo day led most of 11 full weeks |
|---|
Terminal gate prices published by the Australian Institute of Petroleum.
How accurate is the forecast?
- Forecast miss, 7 days ahead
- 4.58 c/L
- "Prices stay the same"
- 4.87 c/L
Source: FuelRadar (fuelradar.com.au)
Over 51,428 week-ahead checks the forecast missed by less than assuming prices stay the same.
| Ahead | Miss | No change | Result |
|---|---|---|---|
| Next day | 0.88 | 0.98 | Closer than no change |
| 3 days ahead | 2.05 | 2.42 | Closer than no change |
| 7 days ahead | 4.58 | 4.87 | Closer than no change |
| 14 days ahead | 7.97 | 8.05 | About the same as no change |
| Average miss in c/L over each horizon's replay checks. The 7-day row decides whether the call names a direction. | |||
How does FuelRadar make the forecast?
FuelRadar has helped Australian drivers find cheaper fuel since 2020. Each estimate starts from Sydney's reported daily city averages and how they have moved recently. A city daily average is FuelRadar's scheduled morning average of the city's reported station prices, the figure this page quotes for every capital. Where a city has a regular price cycle, the estimate projects that cycle; elsewhere it follows the recent trend, blended with the latest dated wholesale price change. Based on the Sydney Diesel outlook, adjusted by -0.8 c/L using local price history. The likely range widens with each day ahead.
Next-day estimates missed by 0.7 c/L on average over the 30 days to 14 Nov, about the same as assuming prices stay the same (0.7 c/L).
30 days checked · 16 Oct to 14 Nov
Forecast test resultsFuel price reports
What drivers paid in every state and territory in October 2026, town by town.
- Australia U91
- 242.8c/L 17.3 c/L higher than the period before
- Read the Australian reportEvery town we could rank, the capital against the rest and the cost of a litre
- Australian fuel price reportPDF · October 2026Download
- Every fuel price report
Forecast questions
When will Diesel prices go down in Prestons?
Estimate only: Diesel in Prestons is estimated to edge down about 3.5 c/L, to 262.8 c/L by Sun 22 Nov (likely 254.8–282.1), from 266.3 c/L estimated for Sun 15 Nov. The dated 30-day forecast shows a likely range, not a promised low date. Check current station prices before changing when you fill.
What is the best day to buy Diesel in Prestons?
There is no fixed best day for Prestons. Compare current reported station prices and their update times. A recent high or a lower estimate does not confirm a cheaper date.
How accurate is FuelRadar Australia's Diesel price outlook?
Not accurate enough yet to tell you to fill or wait, so we don't. From 16 Oct to 14 Nov our next-day Diesel forecasts for Sydney were off by 0.7 c/L on average over 30 days checked. Assuming prices wouldn't move was just as close.
Do higher prices mean they will fall soon?
A recent high does not confirm a turnaround. Compare the reported movement with the estimated range. If that range still includes today's price, a fall is not established. Check current station prices before deciding to wait.
How often is the outlook updated?
We update the forecast overnight. For anything that changed today, check the map.