DIY Car Care: Boost Fuel Economy & Save Big This December

December 2025 is here, and with the holiday season in full swing, your car is likely working overtime. From festive shopping trips to long drives to visit family, your vehicle is shouldering a heavy load. But all that extra mileage can take a toll on your fuel economy. Luckily, there are several simple DIY car care tasks you can undertake this month to optimise your vehicle's performance and save money at the petrol pump.

Tyre Pressure: Your First Line of Defence

Maintaining correct tyre pressure is one of the easiest and most effective ways to improve fuel efficiency. Under-inflated tyres create more rolling resistance, forcing your engine to work harder and consuming more fuel. Check your tyre pressure regularly – at least once a fortnight – and inflate them to the manufacturer's recommended pressure, which can be found on a sticker inside your driver's side door or in your vehicle's owner's manual. A simple tyre pressure gauge is an inexpensive investment that will pay for itself in fuel savings.

Air Filter: Breathe Easy, Drive Efficiently

Your engine needs clean air to function optimally. A dirty air filter restricts airflow, reducing engine performance and fuel economy. Inspect your air filter regularly, especially if you frequently drive on dusty roads. Replacing a clogged air filter is a quick and easy DIY task that can significantly improve your vehicle's efficiency. Consult your owner’s manual for the correct replacement filter and instructions.

Engine Oil: The Lifeblood of Your Vehicle

Regular oil changes are crucial for maintaining engine health and efficiency. Old, dirty oil loses its lubricating properties, causing increased friction and reduced fuel economy. Check your oil level regularly and follow your manufacturer's recommended oil change intervals. While changing your own oil can be a bit messier than other tasks, it's a relatively straightforward process with the right tools and can save you money on mechanic's fees. Be sure to dispose of used oil responsibly at a designated recycling centre.

Spark Plugs: Igniting Efficiency

Faulty or worn spark plugs can lead to misfires, reducing engine performance and fuel efficiency. If your car is difficult to start, idles roughly, or experiences a loss of power, it might be time to replace your spark plugs. Consult your owner's manual for the correct type of spark plugs and replacement intervals. Replacing spark plugs requires some mechanical knowledge, but it's a manageable DIY project for experienced car enthusiasts.

Reduce Weight: Lighten the Load

The heavier your car, the more fuel it consumes. Remove any unnecessary items from your boot and back seat. Carrying around extra weight, even seemingly insignificant items, can add up and negatively impact your fuel economy. A clear-out can make a surprising difference.

Driving Habits: Smooth is Smart

Aggressive driving habits, such as rapid acceleration and hard braking, can significantly reduce fuel economy. Drive smoothly and anticipate traffic conditions to avoid unnecessary acceleration and braking. Maintaining a consistent speed and avoiding excessive idling can also help you save fuel.

Plan Your Route: Optimise Your Journey

Before heading out on a journey, especially a long one, plan your route carefully. Choose the most direct route and avoid congested areas whenever possible. Using navigation apps can help you find the most efficient route and avoid unexpected delays.

Find the Cheapest Fuel Near You with FuelRadar

While these DIY car care tips can help you improve your vehicle's fuel economy, it's also essential to be smart about where you buy your petrol. Fluctuations in fuel prices can significantly impact your wallet. That's where FuelRadar comes in. FuelRadar provides real-time petrol prices across Australia, allowing you to quickly and easily find the cheapest fuel near you. Available on both iOS and Android, FuelRadar empowers you to make informed decisions and save money every time you fill up. Check out the FuelRadar map at https://fuelradar.com.au/map to see current petrol prices in your area.

Download FuelRadar Today

This December, take control of your fuel costs. By implementing these simple DIY car care tips and utilising the power of FuelRadar, you can optimise your vehicle's performance, save money at the pump, and enjoy a more fuel-efficient and affordable festive season. Download the FuelRadar app today and start saving! Visit https://fuelradar.com.au/download-the-fuelradar-app to get started.