How to get £5 free petrol including at Tesco, Sainsbury’s and Asda

It comes as motorists are seeing fuel costs soar - it now costs around £100 to fill up the average family car.

Soaring petrol prices have seen prices reach 178.9p a litre, according to the RAC, and 189.3p a litre for diesel.

Fuel prices have eased off slightly in recently days, but they're still considerably higher than a year ago.

Last week, supermarkets were blasted for not passing on wholesale price falls to customers quickly enough.

A price war ensued, with Asda slashing fuel prices by 5p a litre, Morrisons by 6p and Sainsbury's by 5p.

Independent forecourts have cut prices even further, with one petrol station claiming to be the UK's cheapest.

And drivers also spotted fuel for less than 160p a litre at Costco.

How to get £5 off fuel

Motorists looking to save a fiver have until August 17 to take advantage of this latest deal.

It is only available to new members at Topcashback, so you won't be able to claim the deal with an existing account.

To sign up, you just need to enter your email address and create a password - you must sign up through this to be eligible.

To get the money off, you'll need to go and spend £10 or more on unleaded or super unleaded petrol or diesel at a participating petrol station.

Here is the full list of petrol stations the deal is available at: