Many drivers focus on fuel prices when trying to reduce their monthly expenses, but sometimes the biggest savings come from small things they overlook. One of the simplest ways to improve fuel efficiency is keeping your tyres at the correct pressure.
Your tyres are the only part of your vehicle that touches the road. The condition and pressure of your tyres affect how your car handles, how safely it drives and how much fuel your engine needs to use.
A tyre that is not inflated correctly can increase resistance between your vehicle and the road. When this happens, your engine has to work harder, which can increase fuel consumption.
Why Tyre Pressure Matters
Every vehicle manufacturer recommends a specific tyre pressure for their vehicles. This information is usually found inside the driver's door, in the owner's manual or sometimes near the fuel cap.
These recommendations are not random. They are calculated based on the vehicle's weight, tyre size and expected driving conditions.
Using the correct tyre pressure helps your vehicle move more efficiently and allows your tyres to perform as designed.
How Low Tyre Pressure Uses More Fuel
When tyres are underinflated, more of the tyre surface makes contact with the road. While this might sound like it gives better grip, it also creates more rolling resistance.
Rolling resistance is the force that slows your vehicle down as the tyres move along the road. The higher the resistance, the more energy your engine needs to keep the vehicle moving.
Think about pushing a bicycle with soft tyres compared to one with properly inflated tyres. The bicycle with softer tyres feels harder to move because more effort is required.
Your vehicle experiences a similar effect when tyre pressure is too low.
The Effect on Your Fuel Budget
The extra fuel used from incorrect tyre pressure may seem small during one trip, but over weeks and months it can add up.
A driver who travels long distances every day may notice the difference more than someone who only drives occasionally.
For commuters, delivery drivers and people who regularly travel between cities, maintaining correct tyre pressure can become an important part of reducing running costs.
Correct Pressure Also Improves Safety
Fuel savings are not the only reason to check your tyres. Correct tyre pressure improves vehicle control and helps tyres wear more evenly.
Incorrect pressure can affect braking, steering and overall driving stability.
A tyre that is badly maintained may also wear out faster, meaning you could spend more money replacing tyres sooner than necessary.
How Often Should You Check Your Tyre Pressure?
A good habit is checking your tyre pressure regularly, especially before long trips.
Many drivers only check their tyres when they notice a problem, but pressure can change naturally over time due to temperature changes and normal air loss.
Taking a few minutes to check your tyres can improve safety, extend tyre life and help your vehicle use fuel more efficiently.
Common Tyre Pressure Mistakes Drivers Make
Even drivers who understand the importance of tyre pressure sometimes make mistakes. These small mistakes can affect both fuel economy and vehicle safety.
Checking Tyres Only When There Is a Problem
One common mistake is waiting until a tyre looks flat or the vehicle feels different before checking the pressure.
By the time a problem becomes noticeable, the tyre may already have been underinflated for some time. Regular checks help prevent problems before they happen.
Ignoring the Spare Tyre
Many drivers remember to check the four tyres on the vehicle but forget about the spare tyre.
A spare tyre with incorrect pressure can become a problem during an emergency when you need it most. It is a good idea to include it when doing regular vehicle checks.
Using the Wrong Pressure
Some people assume that putting more air into their tyres will always improve fuel economy. However, tyres that are overinflated can also create problems.
Overinflated tyres may reduce comfort, affect handling and cause uneven tyre wear.
The best approach is using the pressure recommended by your vehicle manufacturer.
Tyre Pressure and Long-Distance Trips
Before a road trip, checking your tyres should be part of your preparation. Long journeys often involve higher speeds and more kilometres, which means small problems can become bigger over time.
A vehicle with correctly inflated tyres will usually perform more efficiently, helping you get the most from every litre of fuel.
Before travelling, check:
- Tyre pressure
- Tyre condition
- Tread depth
- Any visible damage
- Spare tyre condition
Simple Fuel Saving Checklist
Correct tyre pressure is just one part of improving fuel efficiency. Combine it with other good habits to get better results.
- Plan your trips to avoid unnecessary driving
- Drive smoothly and avoid harsh acceleration
- Remove unnecessary weight from your vehicle
- Service your vehicle regularly
- Monitor your fuel usage
- Use a fuel calculator before long trips
Small improvements in several areas can make a bigger difference than focusing on only one change.
Fuel Saving Tip
Make checking tyre pressure part of your monthly routine. It only takes a few minutes and can help protect your wallet and your vehicle.
Frequently Asked Questions
Can low tyre pressure increase fuel consumption?
Yes. Underinflated tyres create more rolling resistance, which means your engine may need to use more energy to move the vehicle.
How often should I check tyre pressure?
Checking tyre pressure regularly is recommended, especially before long trips. Many drivers make it a monthly habit.
Where can I find the correct tyre pressure for my car?
You can usually find the recommended pressure in your vehicle owner's manual, on a label inside the vehicle or from the manufacturer.
Do new tyres improve fuel economy?
Tyre condition can affect efficiency. Properly maintained tyres usually perform better than worn or damaged tyres.
Can tyre pressure affect safety?
Yes. Incorrect tyre pressure can affect handling, braking and vehicle stability.
Can checking tyres really save money?
Yes. Correct tyre pressure can help reduce unnecessary fuel usage and may help tyres last longer, saving money over time.
Final Thoughts
Fuel savings are not always about finding the cheapest petrol station or waiting for fuel prices to drop. Sometimes the easiest savings come from looking after the vehicle you already own.
Maintaining correct tyre pressure is one of the simplest habits a driver can develop. It supports safer driving, improves tyre life and can help your vehicle use fuel more efficiently.
With fuel prices changing regularly in South Africa, every saving matters. A few minutes spent checking your tyres could help reduce unnecessary costs over the long term.
Before your next trip, use the FuelCalculator.co.za Fuel Calculator to estimate your fuel costs and plan your journey better.