Diesel prices have once again dropped amid tumbling oil prices with supermarket chain Asda leading the way.

They announced they will be selling fuel at 97.7p per litre at their filling stations across the country.

Unleaded petrol remains at 99.7p per litre.

Asda said these are the maximum prices motorists will pay at all of its 279 filling stations across the UK.

The supermarket’s senior petrol director, Andy Peake, said: “We’re delighted to be the first retailer to take diesel to its lowest price level in over six years.

“This latest announcement shows that we’re committed to being the driving force behind lowering fuel prices across the UK regardless of where you live.”

Diesel prices hit the £1 per litre in the spring of 2009 and then continued to rise steadily, peaking at £1.48 in April 2012.

But at the start 2016 they fell to 99.9p and now the RAC has said prices could fall as low as 90p, reducing commuter bills and making weekend getaways more affordable.

A study by FairFuelUK has found that, since May last year, oil prices in have fallen by more than 54% but retailers have cut pump prices by just 35%.

The report claimed that retailers’ profit margin for diesel is 11p per litre compared with just 5.8p for petrol.

Diesel should be at least 3p cheaper than petrol, the organisation added.