As fuel prices in parts of Kent soar to 7.9p a litre above the UK average it's never been more important to shop around.

And with the cost of filling up varying by up to 13.2p a litre across the county finding the cheapest pumps could save you as much as £9 per tank.

With this in mind, we've carried out a survey of 170 petrol stations to bring you up to date information about where you could save the most money.

Scroll down to find the cheapest fuel in your area

Our findings show huge variations in costs at the pumps with a litre of petrol priced anywhere between 120.9p and 133.9p, depending where you choose to fill up.

Diesel costs also fluctuate dramatically with prices ranging from 125.7p a litre to 138.9p.

It comes as the cost of diesel in parts of Kent is 7.9p a litre more than the national average.

Those filling up with petrol fare little better with prices, in some cases, nearly 6p above the national average of 128p.

Motorway service stations in Kent were this month accused of "ripping off" drivers by charging over the odds for fuel.

RAC fuel spokesman Simon Williams said evidence suggests the south east is traditionally one of the most expensive places to buy fuel.

"I think it's the proximity to London and unfortunately you do get retail pricing on a regional basis," he said.

"They could be pricing it towards the affluence of the area to some extent, which we feel they really shouldn't be doing."

He puts the blame at retailers and called for greater transparency about the costs being charged to customers.

"You see prices go up by a rocket and fall like a feather when it comes down and this really isn't good enough and motorists are being taken for a ride by that kind of behaviour," he said.

Growing numbers of MPs are now calling for a watchdog to be set up to ensure drivers get a fair deal at the pumps, according to FairFuelUK founder Howard Cox.

"The Exchequer Secretary, Robert Jenrick has asked me to formulate a voluntary pricing code, notionally called PumpWatch," he told KentOnline.

WATCH: Are fuel prices fair?

"The plan is to be presented to the treasury before the summer recess by the APPG for Fair Fuel for Motorists and Hauliers.

"The threat of PumpWatch is showing signs of recent oil price movements being passed onto hard pressed drivers much quicker than usual."

The cheapest and most expensive places to fill up your vehicle in Kent include:

* Petrol stations located within five miles of each area *

• All figures from Petrolprices.com

You can check average petrol and diesel prices via RAC Fuel Watch

Compare costs at your local station via Petrolprices.com

Read more: All the latest business news