The average cost of filling a typical family car with petrol has exceeded £100 for the first time.
Figures from data firm Experian Catalist show the average price of a litre of petrol at UK forecourts reached a record 182.3p on Wednesday.
That was an increase of 1.6p compared with Tuesday, taking the average cost of filling a 55-litre family car to £100.27.
The average price of a litre of diesel on Wednesday was 188.1p.
The RAC said it was a “truly dark day” for drivers.
It comes as motorists are being warned average fuel prices will hit £2 per litre this summer.
The RAC made the prediction in the face of rising oil prices and the weakening of the pound versus the US dollar.
Government figures show the average price of a litre of petrol at UK forecourts on Monday was a record 175.6p, up 6.6p from 169.0p seven days earlier.
Average diesel prices increased by 3.7p per litre over the same period, reaching 185.3p.
That was the largest weekly increase for both fuels since March.
RAC fuel spokesman Simon Williams said: “With analysts predicting that oil will average 135 US dollars a barrel for the rest of this year, drivers need to brace themselves for average fuel prices rocketing to £2 a litre, which would mean a fill-up would rise to an unbelievable £110.
“The oil price is rising due to increased demand for fuel across the world as China eases its Covid restrictions and America and Europe go into the peak summer driving season.
“All this combined with a weaker pound at 1.2 US dollars means wholesale fuel costs more for retailers to buy.
“The wholesale price of diesel is fast approaching 160p a litre which, when you add 7p retailer margin and 20% VAT, would take the pump price over the £2 mark.
“We strongly urge the Government to take drastic action to help soften the impact for drivers from these never-before-seen pump prices.”
Don't miss the latest news from around Scotland and beyond - Sign up to our daily newsletter here.
