Unleaded 91 Prices Across Australia

The national average unleaded 91 price in Australia is 245.9 cents per litre as of 13 October 2026, based on 5,861 stations tracked twice daily via official government APIs (NSW FuelCheck, QLD Fuel API, SA Informed Sources, VIC Fair Fuel, WA FuelWatch, NT MyFuel, TAS FuelCheck; NSW FuelCheck also covers the ACT). Prices range from 195.0c/L (cheapest) to 410.0c/L (most expensive), a 215.0c spread.

Currently, Unleaded 91 is available at 5,861 service stations across 8 Australian states and territories. Prices range from 195.0c to 410.0c per litre, with a national average of 245.9c/L. The 215.0c/L price spread means savvy motorists can save up to $107.50 on a 50L tank by shopping around. Queensland offers the cheapest ULP prices (averaging 242.4c/L), while Northern Territory is 38.2c/L higher at 280.6c/L. Among major retailers, Burk consistently offers competitive ULP pricing, averaging 229.8c/L across their 16 stations.

Last updated: 09:51 PM, 13 Oct 2026

5 cheapest unleaded 91 stations in Australia right now

#	Station	Suburb	Unleaded 91
1	Billabong Roadhouse	Meadow, WA	195.0c
2	Independent Alyangula Township Service Station	Alyangula, NT	201.3c
3	Reflections Holiday Parks	Copeton, NSW	212.3c
4	Belyuen Store	Belyuen, NT	215.0c
5	U-Go East Maitland (Un-Manned)	East Maitland, NSW	221.5c

Find unleaded 91 near me right now →

245.9c

Average Price

195.0c

Cheapest Price

5,861+

Stations

215.0c

Price Range

PetrolSMART. Smart Fuel Insights

Prices Trending Up

Heads up - prices are trending up about 7.9c on average. Might be worth filling up soon.

272 Price Drops Found

We've spotted 272 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

272

Price Drops
in last 24h

PetrolSMART Market Sentiment

94%

Fill Now

Good Value

Fair

Wait

Check

Check individual station prices in Unleaded 91

Price Cycle Overview

Distribution of stations across cycle phases in Unleaded 91

Dominant

Low

30% conf

Low 51% (4807)

Rising 37% (3483)

High 0% (45)

Falling 12% (1174)

Low Phase Dominant

Great time to fill up - prices are at their lowest

7-Day Price Forecast

+7.9c

average expected change

forecasting
drop

6020

stable

848

forecasting
rise

Prices Expected to Rise

Prices across Unleaded 91 are forecast to rise around 7.9c on average. Consider filling up soon if you're running low.

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
Queensland	242.4c	223.5c	378.0c	895
South Australia	242.8c	227.7c	345.0c	149
Victoria	244.6c	225.7c	300.0c	1,619
New South Wales	245.2c	212.3c	369.0c	1,954
Western Australia	245.7c	195.0c	376.0c	930
Australian Capital Territory	247.1c	236.7c	251.9c	54
Tasmania	252.6c	237.9c	261.0c	78
Northern Territory	280.6c	201.3c	410.0c	182

Cheapest Unleaded 91 Stations

#	Station	Brand	Suburb	State	Price
1	Billabong Roadhouse	Independent	Meadow	WA	195.0c
2	Independent Alyangula Township Service Station	Independent	Alyangula	NT	201.3c
3	Reflections Holiday Parks	Independent	Copeton	NSW	212.3c
4	Belyuen Store	Independent	Belyuen	NT	215.0c
5	U-Go East Maitland (Un-Manned)	U-Go	East Maitland	NSW	221.5c
6	United Petroleum Maitland	United	Maitland	NSW	221.5c
7	United Petroleum East Maitland	United	East Maitland	NSW	221.5c
8	Burk Alkimos	Burk	Alkimos	WA	223.3c
9	Astron Yarraman	Astron	Yarraman	QLD	223.5c
10	United Dalby	United	Dalby	QLD	223.5c
11	Pearl Energy Nanango	Pearl Energy	Nanango	QLD	223.5c
12	24xpress Marsden Park	Independent	Waterford West	QLD	224.5c
13	Shell Express Moe	Shell	Moe	VIC	225.7c
14	Ampol Foodary Waterford West	Ampol	Waterford West	QLD	225.9c
15	United Park Ridge	United	Park Ridge	QLD	225.9c

Unleaded 91 Prices by Brand

Brand	Average Price	Cheapest	Stations
Burk	229.8c	223.3c	16
Costco	231.8c	227.7c	7
Solo	233.8c	229.5c	22
Vibe	235.3c	227.2c	52
X Convenience	235.5c	229.9c	10
Atlas	235.7c	231.9c	20
APCO	236.0c	229.5c	28
U-Go	236.7c	221.5c	43
Pearl Energy	237.2c	223.5c	77
Speedway	237.7c	233.5c	47
Bonney	239.0c	232.9c	7
Metro	239.0c	226.9c	266

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

Complete Guide to Unleaded 91 in Australia

Overview

Unleaded 91 (ULP) is Australia's most widely used fuel, powering the majority of passenger vehicles on our roads. With a Research Octane Number of 91, it provides reliable performance for everyday driving without the added cost of premium alternatives. Every service station in Australia stocks ULP, making it the most accessible fuel choice for motorists.

Who Should Use Unleaded 91?

ULP is the right choice if your vehicle's manufacturer recommends 91 RON or higher. This includes most Toyota Corollas, Mazda 3s, Hyundai i30s, Kia Ceratos, and similar family vehicles. Check the fuel flap sticker or your owner's manual for the minimum octane requirement. If it says "91 RON minimum", ULP is your most economical option and using premium fuels will not provide any measurable performance or efficiency benefit.

Buying Tips for Australian Motorists

In Australia's east coast cities (Sydney, Melbourne, Brisbane, Adelaide), ULP prices follow predictable weekly or fortnightly cycles. Prices tend to be cheapest midweek (Tuesday to Thursday) and spike on weekends. In Perth, the cycle runs roughly monthly. By timing your fill-ups to the bottom of the cycle, you can save 15 to 30 cents per litre compared to peak pricing. Regional areas typically have steadier prices but may cost more due to transport margins.

Fuel Efficiency and Economy

A typical Australian passenger car achieves 7 to 10 litres per 100 kilometres on ULP. To maximise fuel economy, maintain correct tyre pressure (underinflated tyres increase consumption by up to 3%), avoid aggressive acceleration, and remove unnecessary roof racks or heavy items from the boot. Air conditioning in city driving can increase consumption by 10% or more, so consider windows down at lower speeds.

Frequently Asked Questions About Unleaded 91

Can I use E10 instead of ULP to save money?

Yes, most vehicles manufactured after 2005 can safely use E10. It is typically 3 to 5 cents per litre cheaper than ULP, though it contains slightly less energy so fuel economy may drop by 2 to 3 percent. Check your owner's manual or the fuel flap sticker for E10 compatibility before switching.

Will using Premium 95 or 98 in a ULP car improve performance?

No. If your engine is designed for 91 RON, using higher octane fuel will not improve performance, fuel economy, or engine longevity. You would simply be paying more for the same result. Higher octane only benefits engines with higher compression ratios that specifically require it.

Why do ULP prices vary so much between stations?

ULP prices in Australian cities follow pricing cycles driven by wholesale costs and competitive dynamics between major retailers. At the bottom of a cycle, intense competition drives prices down. As the cycle peaks, retailers restore margins. Location, brand, and proximity to competitors also influence individual station pricing. Price differences of 30 to 50 cents per litre between stations are common during cycle peaks.

How long can ULP sit in my tank before going stale?

Modern ULP with its standard additives remains usable for about three to six months in a sealed tank. If you drive infrequently, try to keep your tank at least half full to reduce condensation. For long-term storage exceeding three months, consider a fuel stabiliser additive.