A PETROL rise of 4p could put more young people off learning to drive, says instructor Mike Morris.
The Petrol Retailers' Assocation (PRA) has predicted a price jump at the pumps over the next few days.
It says the hike is down to an unexplained leap in wholesale prices of 5p a litre since Christmas and "speculation" by wholesale traders.
Mike runs 17+ Gloucester Driving School, based in Barnwood, and said: "Obviously it concerns us greatly because there's a lack of pupils at the moment.
"There's very few driving tests being done and I think the Driving tandards Agency is concerned too.
"The local test centre only has a one-week waiting list and usually it has a six-week one.
"I think a rise in fuel does put people off and this hike will hit us."
According to Petrolprices.com, the average petrol price in Gloucester yesterday was 131.3p and the highest price was 133.9p.
Some of the cheapest garages with a price of 129.1p were the Jet on London Road, Sainsbury's in St Ann Way and the Esso in Eastern Avenue.
PRA chairman Brian Madderson said: "Independent retailers have been soaking up this increase at the expense of already tight margins because they know how hard the motorist is squeezed. But the floodgates will have to open soon."
He added: "The shock rise in wholesale costs is just one of the reasons why the PRA has been knocking on the door of the Office for Fair Trading since this time last year, to demand a full investigation into the workings of the UK market for road fuel."
"We now need the new chief executive at the OFT, Clive Maxwell, to step out from the shadows and help consumers by conducting a full market study that will lift the veil of secrecy from the wholesale cost movements."