Unleaded 91 Prices Across Australia

The national average unleaded 91 price in Australia is 203.4 cents per litre as of 28 July 2026, based on 9,154 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 95.0c/L (cheapest) to 385.0c/L (most expensive), a 290.0c spread.

Currently, Unleaded 91 is available at 9,154 service stations across 24 Australian states and territories. Prices range from 95.0c to 385.0c per litre, with a national average of 203.4c/L. The 290.0c/L price spread means savvy motorists can save up to $145.00 on a 50L tank by shopping around. Victoria offers the cheapest ULP prices (averaging 192.2c/L), while Northern Territory is 48.2c/L higher at 240.4c/L. Among major retailers, Burk consistently offers competitive ULP pricing, averaging 177.3c/L across their 20 stations.

Last updated: 09:38 PM, 28 Jul 2026

5 cheapest unleaded 91 stations in Australia right now

#	Station	Suburb	Unleaded 91
1	Waitomo Palmerston North	Palmerston North, MWT	95.0c
2	BP Horsham	Horsham, VIC	158.7c
3	Bundalong Riverside Resort	Brimin, VIC	159.9c
4	Bundalong Riverside Resort	Brimin, VIC	159.9c
5	Ampol Grovedale	Grovedale, VIC	163.4c

Find unleaded 91 near me right now →

203.4c

Average Price

95.0c

Cheapest Price

9,154+

Stations

290.0c

Price Range

PetrolSMART. Smart Fuel Insights

Prices Dropping

Good news - prices look set to drop around 1.4c on average over the next week.

248 Price Drops Found

We've spotted 248 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

248

Price Drops
in last 24h

PetrolSMART Market Sentiment

97%

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

Rising

13% conf

Low 14% (2787)

Rising 82% (15990)

High 1% (260)

Falling 2% (351)

Rising Phase Dominant

Prices climbing - fill up soon to save

7-Day Price Forecast

-1.4c

average expected change

forecasting
drop

9163

stable

161

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	192.2c	158.7c	300.0c	1,941
New South Wales	192.8c	172.5c	279.4c	1,864
Western Australia	194.5c	172.9c	360.0c	1,167
Queensland	194.7c	169.9c	340.0c	1,732
South Australia	195.0c	169.8c	300.0c	680
Tasmania	195.1c	169.9c	298.9c	282
Australian Capital Territory	201.1c	182.7c	206.9c	61
Northern Territory	240.4c	185.0c	385.0c	191

Cheapest Unleaded 91 Stations

#	Station	Brand	Suburb	State	Price
1	Waitomo Palmerston North	Independent	Palmerston North	MWT	95.0c
2	BP Horsham	BP	Horsham	VIC	158.7c
3	Bundalong Riverside Resort	Independent	Brimin	VIC	159.9c
4	Bundalong Riverside Resort	Independent	Brimin	VIC	159.9c
5	Ampol Grovedale	Ampol	Grovedale	VIC	163.4c
6	Ampol Bendigo Depot	Ampol	Bendigo	VIC	163.9c
7	Burk Bendigo	Burk	Epsom	VIC	167.3c
8	Mid North Tyres Balaklava	Mogas	Balaklava	SA	169.8c
9	Shell Reddy Express MacKay Broadsound Rd	Reddy Express	MacKay Broadsound	QLD	169.9c
10	Mobil Stawell Roadhouse	Exxon	Stawell	VIC	169.9c
11	APCO Alfredton	APCO	Alfredton	VIC	169.9c
12	APCO Skipton St - Ballarat	APCO	Ballarat	VIC	169.9c
13	APCO Main Rd - Ballarat	APCO	Ballarat	VIC	169.9c
14	Metro Petroleum Golden Point	Metro	Golden Point	VIC	169.9c
15	Metro Frankston	Metro	Frankston	VIC	169.9c

Unleaded 91 Prices by Brand

Brand	Average Price	Cheapest	Stations
Burk	177.3c	167.3c	20
Atlas	180.4c	174.9c	28
Vibe	181.2c	172.9c	57
Speedway	182.5c	179.5c	44
APCO	183.7c	169.9c	32
Pearl Energy	183.9c	172.5c	83
Petro Fuels	183.9c	178.5c	8
Budget	183.9c	177.7c	27
Costco	184.6c	174.7c	9
Metro	184.9c	169.9c	299
Ultra Petroleum	185.3c	173.9c	12
Solo	185.7c	177.5c	37

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.