A top motoring expert has revealed that one simple thing can save you money at the fuel pump.

Keeping up with regular car maintenance such as servicing the engine, checking filters and pumping up all four tires can seem like a lot of work during Christmas.

But Drew Hickman, an engine expert at BookMyGarageemphasized that keeping a car in top shape this winter will keep components running smoothly and gas and diesel bills low.

The latest warning comes after new research from BookMyGarage revealed that the fuel economy of an average gasoline car drops by about 15% in colder temperatures.

At the same time, fuel consumption can increase by around 24% for shorter trips of three to five miles over the winter.

Drew said: “Regularly servicing your engine, tires and filter is key to maintaining fuel efficiency during the winter months.

“An engine that is in top condition burns fuel more efficiently, and well-maintained tires with good tread provide better grip, reducing drag.

“Tyre maintenance is particularly important, as winter road conditions can increase wear. Checking tread depth and tire condition can improve grip on icy roads, keeping you safe and fuel efficient.”

Experts have acknowledged that regular acceleration and braking in winter conditions can increase fuel consumption.

This is likely to affect vehicles in stop-and-go traffic in busy areas such as shopping centers ahead of the Christmas holiday.

Cold weather can also affect the tire’s traction, which can increase rolling resistance.

This means that engines have to work much harder to keep a vehicle moving, which in turn consumes more petrol or diesel.

Drew added: “Engines require more fuel to reach normal operating temperature in cold weather, as the difference in ambient and operating temperature is greater in winter. This means the engines take longer to warm up.”

Breakdown specialists and car insurance experts at RAC previously recognized regular maintenance and servicing was critical to improving economy.

They added: “It’s especially important to make sure your tires are inflated to the correct pressure specified in your owner’s manual, as both under-inflating and over-inflating tires negatively affect fuel economy.”