As of 10am, United Petroleum had unleaded for 127.9 cents per litre and Mobil was selling for 126.9 cents per litre.

Junee’s Caltex was 30 cents higher and Shell was still up at 142 cents.

At the same time, NSW’s average unleaded 91 price was 142.1 cents per litre and Wagga’s prices varied from 139.9 to 147.2 cents per litre.

The discount follows Coles Express in Wagga dramatically reducing its prices late last month during a national boycott against steeply rising fuel costs.

Sedan

A standard six-cylinder engine sedan would likely use 8.6 litres of fuel travelling about 43 kilometres each way from Wagga to Junee and back again.

Assuming you previously filled up at 147.2 cents, it would cost $6.32 to travel to Junee.

Once you filled up at Junee at 126.9 cents, if would cost $5.45 to travel back to Wagga.

Buying 70 litres of fuel at Junee, filling almost all of a Falcon or Commodore fuel tank from near empty, would cost $88.83 at Junee versus $103.04 cents in Wagga at 147.2 cents.

The gross saving would be $14.21 minus travel fuel costs of leaving a net saving of $2.42.

Of course, this ignores how much you value your own time and the cost of wear and tear on your vehicle or any side benefits if you have other errands or events to attend at Junee. 

Hatchback

Using a four-cylinder hatchback such as a Suzuki Swift would lower the cost of travel and increase the savings to $2.58, provided you could arrive with at Junee two litres or less left in the tank in order to purchase 40 litres.

V8 four-wheel-drive

A high-performance four-wheel-drive, such as a petrol V8 Range Rover, would generally lose money filling up in Junee despite its far bigger fuel tank.

However, a driver from Wagga could manage to make savings if they were able to arrive at a Junee service station with less than 10 litres in their tank.