Motorists are being warned of an increase in the cost of a tank of petrol off the back of rising oil prices and a slumping pound.
Brent crude has risen 6 per cent in the last month to $76.46 while the pound has slumped from $1.27 to $1.23 over the same period. Crude oil is the raw material for petrol and diesel and it is priced in dollars in international markets, meaning that a weaker pound makes for pricier fuel.
