Unleaded 91 Prices Across Australia

Currently, Unleaded 91 is available at 5,464 service stations across 12 Australian states and territories. Prices range from 143.1c to 400.0c per litre, with a national average of 172.0c/L. The 256.9c/L price spread means savvy motorists can save up to $128.45 on a 50L tank by shopping around. Victoria offers the cheapest ULP prices (averaging 168.4c/L), while Northern Territory is 56.9c/L higher at 225.3c/L. Among major retailers, Costco consistently offers competitive ULP pricing, averaging 152.7c/L across their 5 stations.

Last updated: 06:25 PM, 30 Jan 2026

172.0c
Average Price
143.1c
Cheapest Price
5,464+
Stations
256.9c
Price Range

PetrolSMART. Smart Fuel Insights

Prices Holding Steady
Prices are pretty stable at the moment. We're tracking 9,385 stations across Australia.
1219 Price Drops Found
We've spotted 1219 servos with recent price drops, currently cheaper than their local area average.
Cheapest Day: Monday
Looking at the data, Monday tends to have the best prices. Worth planning your fill around if you can.

PetrolSMART Price Intelligence

1219
Price Drops
in last 24h
PetrolSMART Market Sentiment
36%
26%
20%
18%
Fill Now
Good Value
Fair
Wait
Check

36% of stations in Unleaded 91 are showing great value right now

Price Cycle Overview

Distribution of stations across cycle phases in Unleaded 91

Dominant
High
21% conf
Low 1% (118)
Rising 6% (912)
High 60% (9106)
Falling 34% (5156)
High Phase Dominant
Prices near peak - wait if you can
7-Day Price Forecast
-0.2c
average expected change
2910
forecasting
drop
1899
stable
4576
forecasting
rise
Prices Expected to Hold Steady
Prices across Unleaded 91 are expected to remain relatively stable over the next week. Fill up when convenient.
Best Day to Fill Up
Monday

Based on historical price patterns in Unleaded 91, Monday tends to offer the best prices. Start of the week often brings lower prices as stations compete for customers.

Unleaded 91 Prices by State

State Average Cheapest Highest Stations
Victoria 168.4c 149.9c 350.0c 1,610
Western Australia 170.1c 143.1c 245.9c 751
Queensland 173.8c 147.5c 203.9c 670
South Australia 176.7c 145.5c 190.9c 203
New South Wales 177.2c 143.5c 256.9c 1,770
Tasmania 178.2c 149.5c 232.0c 260
Australian Capital Territory 183.6c 169.9c 189.9c 7
Northern Territory 225.3c 158.0c 389.0c 181

Cheapest Unleaded 91 Stations

# Station Brand Suburb State Price
1 Burk Oakford Burk Oakford WA 143.1c
2 Metro Petroleum Earlwood Metro Earlwood NSW 143.5c
3 Arko Earlwood Arko Energy Earlwood NSW 143.5c
4 Astron Bathurst Astron Bathurst NSW 143.9c
5 Metro South Bathurst Metro South Bathurst NSW 144.9c
6 Pearl Energy Bathurst Pearl Energy Bathurst NSW 144.9c
7 United Pooraka Independent Pooraka SA 145.9c
8 Mobil Blair Athol Mogas Blair Athol SA 145.9c
9 Ampol Kelso Ampol Kelso NSW 146.9c
10 Metro Petroleum Kelso Metro Kelso NSW 146.9c
11 Vibe Oakford Truckstop Vibe Oakford WA 146.9c
12 Shell Reddy Express Granard Rd Independent Granard QLD 147.5c
13 United Archerfield Independent Archerfield QLD 147.5c
14 Vibe Beechboro Vibe Beechboro WA 148.3c
15 U-Go Carlingford Court (Self- Serve) U-Go Carlingford NSW 148.5c

Unleaded 91 Prices by Brand

Brand Average Price Cheapest Stations
Costco 152.7c 148.7c 5
Burk 155.0c 143.1c 13
Solo 157.8c 148.5c 8
Atlas 158.4c 150.9c 17
U-Go 159.1c 148.5c 30
APCO 160.1c 153.3c 24
Petro Fuels 160.5c 157.9c 6
Vibe 162.1c 146.9c 53
Pearl Energy 162.1c 144.9c 44
Westside 162.2c 158.9c 6
Better Choice 165.8c 155.9c 8
Liberty 166.7c 152.5c 134

About Unleaded 91

Standard unleaded petrol with 91 RON (Research Octane Number). The most common and affordable fuel option, suitable for most passenger vehicles manufactured after 1986.

Suitable for: Most passenger cars, SUVs, and light vehicles manufactured after 1986

Octane Rating: 91 RON