Filling a car with diesel remains about £26 higher than in late February, while a tank of petrol costs nearly £14 more.
The RAC believes further falls can be expected, because costs on wholesale markets have remained below their recent peaks.
“We’re hopeful there will be further reductions amounting to several pence a litre in the coming days,” said Simon Williams, head of policy at the RAC.
“After record price rises, drivers will be relieved to finally see prices going the other way.”
The rises over the past six weeks took the average cost of diesel from 142p a litre up to nearly 192p, and the cost of petrol from 133p to more than 158p.
But fuel prices remain below the levels reached in summer 2022 following Russia’s invasion of Ukraine, when petrol reached 191.5p a litre and diesel hit 199p.
