Diesel costs fell by a document of practically 12p a litre final month, figures present.
The RAC mentioned the typical value of the gas at UK forecourts dropped from 158.9p to 147p in Could.
Regardless of this being the most important month-to-month discount because the motoring companies firm started monitoring gas costs in 2000, it believes the lower ought to have been larger to totally replicate adjustments within the wholesale market.
The value drop has lowered the price of filling a typical 55-litre household automobile by about £6.50.
Could was the seventh consecutive month by which pump costs fell.
The common value of a litre of petrol dropped by greater than 3p from 146.5p to 143.3p final month.
The Competitors and Markets Authority watchdog mentioned final month that indications confirmed larger pump costs in 2022 “seem partly to replicate some weakening of competitors”.
It mentioned it had discovered proof that weakening competitors among the many supermarkets had pushed up costs for drivers on the pump.
The RAC’s gas spokesperson, Simon Williams, mentioned: “After calling for large pump value cuts for weeks, we have been happy to see that Could was the month the place this lastly occurred. The very fact it seems to have been prompted by the Competitors and Markets Authority’s mid-month announcement about weakening competitors in gas retailing is definitely not a coincidence.
“A 12p discount within the value of diesel in a single month is one thing we haven’t seen in practically 23 years of monitoring costs. However regardless of this, it’s nonetheless galling to see {that a} litre of diesel is 8.5p cheaper in Northern Eire than it’s in the remainder of the UK.
“This factors to a extra clear and aggressive gas market there, one thing drivers in the remainder of the UK would very very like to see, notably with cash being so tight in the price of dwelling disaster.”
