MOTORISTS can slash their fuel use and pocket hundreds of pounds by pushing a key button in their car.
The feature helps to "reduce speeds" - meaning drivers will spend less time filling up at service stations.
“Many people may need to learn that driving speed can play a part in how fuel efficient a car is," experts at CarShop said.
“Research indicates that reducing driving speed by 5mph to 10mph can improve fuel economy by 7-14 percent depending on different factors such as the car’s size, weight and fuel type.
“Helpful tip - if the vehicle has cruise control make sure you use it when possible.
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"This will help to keep a constant speed, which can help with fuel economy.”
Major car brand Kia has claimed the button can help drivers boost fuel economy from anywhere between seven and 14 percent, according to the Daily Express.
However, this fuel-saving technique only works within certain constraints.
Cruise control will only save fuel if it's used on flat surfaces - such as motorways, experts at the RAC have warned.
In fact, using the feature on different gradients will have the opposite effect.
They said: “If you were to use your cruise control regularly, not on flat roads, you would encounter problems that would increase your fuel consumption.
“This is because your cruise control would be slower to react to gradient changes, meaning when reaching the brow of a hill – at which point you would normally take your foot off the accelerator to maintain more of a constant speed when descending – your cruise control will keep the power on for a little longer as it’s unable to see the gradient change in front of you.
"Driving in this way regularly would lead to worse fuel consumption.”
FUEL FOR THOUGHT
A financial expert has told drivers the exact time they should avoid filling up at petrol stations to help save them on fuel costs.
According to the guru, motorists can pay “lower prices” at fuel stations across the UK by making just a small change to their schedule.
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Finance expert Rebecca Bebbington of NetVoucherCodes has urged petrol or diesel car owners to take advantage of ever-changing prices by avoiding peak times when there is more traffic on the roads.
This can include rush hours in the morning and evening - around 9am and 5pm - as well as around noon.
Rebecca said: "Petrol prices can fluctuate throughout the day, with prices typically lower during off-peak hours.
"Try to fill up your tank early in the morning or late at night to take advantage of potentially lower prices.
"Avoid peak times such as midday and after 5pm when the majority of the country finishes work."
This comes as an expert driving instructor warn motorists that a common feature in modern cars could actually be dangerous when indicating.
Elsewhere, a driver received a "rare apology" after his £100 speeding fine was overturned due to a bizarre loophole.
