Unleaded 91 Prices Across Australia

The national average unleaded 91 price in Australia is 216.3 cents per litre as of 29 August 2026, based on 8,957 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) plus community-verified sources for ACT and NZ. Prices range from 100.0c/L (cheapest) to 404.9c/L (most expensive), a 304.9c spread.

Currently, Unleaded 91 is available at 8,957 service stations across 25 Australian states and territories. Prices range from 100.0c to 404.9c per litre, with a national average of 216.3c/L. The 304.9c/L price spread means savvy motorists can save up to $152.45 on a 50L tank by shopping around. Victoria offers the cheapest ULP prices (averaging 206.0c/L), while Northern Territory is 45.9c/L higher at 251.9c/L. Among major retailers, Burk consistently offers competitive ULP pricing, averaging 194.0c/L across their 20 stations.

Last updated: 06:45 PM, 29 Aug 2026

5 cheapest unleaded 91 stations in Australia right now

#	Station	Suburb	Unleaded 91
1	7-Eleven Mt Gravatt East	Mt Gravatt East, QLD	100.0c
2	Ampol Foodary Lansvale	Lansvale, NSW	173.5c
3	24xpress Lansvale	Canley Vale, NSW	173.5c
4	Shell Ampm Highway	Albany, WA	175.9c
5	Metro Lansdowne	Lansdowne, NSW	178.9c

Find unleaded 91 near me right now →

216.3c

Average Price

100.0c

Cheapest Price

8,957+

Stations

304.9c

Price Range

PetrolSMART. Smart Fuel Insights

Prices Holding Steady

Prices are pretty stable at the moment. We're tracking 9,429 stations across Australia.

151 Price Drops Found

We've spotted 151 servos with recent price drops, currently cheaper than their local area average.

Cheapest Day: Wednesday

Looking at the data, Wednesday tends to have the best prices. Worth planning your fill around if you can.

PetrolSMART Price Intelligence

151

Price Drops
in last 24h

PetrolSMART Market Sentiment

24%

67%

Fill Now

Good Value

Fair

Wait

Check

67% of stations suggest waiting might save you money

Price Cycle Overview

Distribution of stations across cycle phases in Unleaded 91

Dominant

Falling

5% conf

Low 0% (6)

Rising 8% (1151)

High 0% (14)

Falling 92% (13836)

Falling Phase Dominant

Prices dropping - might pay to wait a bit

7-Day Price Forecast

-1.6c

average expected change

4636

forecasting
drop

2564

stable

2229

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

Wednesday

Based on historical price patterns in Unleaded 91, Wednesday tends to offer the best prices. Midweek can be a sweet spot before weekend price hikes.

Unleaded 91 Prices by State

State	Average	Cheapest	Highest	Stations
Victoria	206.0c	182.9c	300.0c	1,934
New South Wales	206.6c	173.5c	304.9c	2,050
Queensland	206.7c	100.0c	340.0c	1,625
Australian Capital Territory	207.9c	196.7c	212.9c	112
Tasmania	208.0c	194.7c	290.0c	28
South Australia	208.2c	188.7c	325.0c	650
Western Australia	211.8c	175.9c	375.0c	1,172
Northern Territory	251.9c	189.4c	399.0c	185

Cheapest Unleaded 91 Stations

#	Station	Brand	Suburb	State	Price
1	7-Eleven Mt Gravatt East	7-Eleven	Mt Gravatt East	QLD	100.0c
2	Ampol Foodary Lansvale	Ampol Foodary	Lansvale	NSW	173.5c
3	24xpress Lansvale	24Xpress logo	Canley Vale	NSW	173.5c
4	Shell Ampm Highway	Shell	Albany	WA	175.9c
5	Metro Lansdowne	Metro	Lansdowne	NSW	178.9c
6	Speed Service Station	Shell	Speed	VIC	182.9c
7	Ampol Foodary Waterford West	Ampol	Waterford West	QLD	183.5c
8	24xpress Marsden Park	Independent	Waterford West	QLD	183.5c
9	Matthews Mortlake	Matthews	Mortlake	VIC	183.9c
10	Pearl Energy Edgeworth	Pearl Energy	Edgeworth	NSW	186.5c
11	Ultra Edgeworth	Ultra Petroleum	Edgeworth	NSW	186.7c
12	Temco Petroleum	TEMCO Petroleum	Greenacre	NSW	186.7c
13	Costco Casuarina	Costco	Casuarina	WA	186.7c
14	Costco Perth Airport	Costco	Perth Airport	WA	186.7c
15	Metro Petroleum West Wallsend	Metro	West Wallsend	NSW	186.9c

Unleaded 91 Prices by Brand

Brand	Average Price	Cheapest	Stations
Burk	194.0c	188.3c	20
Pearl Energy	196.5c	186.5c	87
Costco	196.9c	186.7c	9
Solo	196.9c	189.5c	32
Speedway	197.1c	191.5c	47
Atlas	197.2c	190.9c	29
Budget	198.3c	192.9c	29
Vibe	198.7c	189.2c	57
APCO	199.4c	188.3c	32
Metro	199.5c	178.9c	296
Ultra Petroleum	200.2c	186.7c	12
X Convenience	200.3c	193.5c	50

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.