The cost of filling up a car with petrol will be £10 cheaper within a fortnight, according to the AA motoring organisation.
The news comes as a relief to hard-up drivers as fuel prices are starting to fall from record highs seen earlier this month.
On July 4 a litre of petrol cost 191.5p and diesel 199.2p on average, according to Government figures.
However, many motorists were charged more than £2 a litre depending on where they filled up.
This week petrol is 188.9p a litre - 2.6p less than the record high.
Diesel is 197.5p per litre, or 1.7p less.
The AA said drivers are already paying £1.50 less to fill up the average car.
Petrol and diesel prices could fall even further as the cost of wholesale petrol to forecourts has dropped.
This hit highs of more than £1 a litre on June 1, but is now below 80p a litre.
AA fuel price spokesperson Luke Bosdet said: “Wholesale petrol’s trajectory, if sustained, would lead to savings of a tenner off a tank from the record highs – providing the fuel trade is prepared to pass them on.
“The problem is that, in many places, the price cuts are quite simply not happening despite more than six weeks of falling costs."
Until fuel prices fall further it makes sense to squeeze every last mile out of your tank.
Here are some of the best ways to drive down your fuel bills.
Find the cheapest petrol station
With prices so high, it makes sense to fill up at the cheapest petrol station you can.
Websites like petrolprices.com let you find the lowest-price fuel near you.
Petrol stations near motorways also tend to be the most expensive, so try to avoid filling up on these roads unless you have no choice.
Make your car more efficient
There are several tips to be more fuel efficient when driving.
A well-maintained car is up to 10% more efficient than one that has been allowed to fester in its old oil, so keeping your car serviced makes sense.
Heavier cars use more fuel, so take out all of the clutter from your car.
Under-inflated tyres are less efficient, make sure yours are topped up to the manufacturer's recommended levels.
Tyres when under-inflated by just 15psi can use 6% more fuel. However, the quick and simple task of checking your tyre pressure can help.
By making sure that your tyres are inflated you'll be able to get an additional 26 miles from a 60-litre tank of fuel.
Cars are more efficient when they are more aerodynamic - but things like roof racks can add drag. If you are not using one, fuel experts known as 'hypermilers' recommend removing them entirely.
Driving at between 50 and 60 miles an hour is generally the most petrol efficient way to get from point A to point B. It can save you up to 40% fuel on journeys (and given traffic in Britain, probably not cost you any time).
Obviously, obey the speed limit and don't drive too quickly if the road and conditions don't allow it.
Using air conditioning and heating minimally will also cut fuel consumption.
Change how you drive
Hypermiling is a cost-effective way of driving that maximises the amount of miles you do to the gallon - increasing the amount of time before you have to fill up.
Driving smoothly and not braking or accelerating too sharply - unless it's an emergency - is a great way to save on fuel.
Another trick is to keep an eye on the traffic flow in front of you to help read the road - and save on fuel costs.
By keeping your car moving and anticipating what is about to happen, you burn less petrol.
