Tyre pressure of your vehicle — Everything you need to know

We spend so much time focusing on engines, gadgets, and shiny exteriors, but what about the tyres? They’re the backbone of every smooth ride, and keeping their pressure just right can save you fuel, money, and unnecessary trouble. Let’s dig into why tyre pressure deserves your attention—because a little air goes a long way.

What is tyre pressure?

Tyre pressure refers to the amount of air inside the tyre, measured in pounds per square inch (PSI) or bar. It plays a vital role in maintaining the structure of the tyre and ensuring proper contact with the road.

The recommended tyre pressure varies depending on the vehicle make, model, and tyre size. You can typically find the manufacturer’s recommended PSI on a sticker inside the driver’s door frame or in the vehicle’s manual.

Why tyre pressure of a vehicle matter?

Safety on the road

Underinflated tyres can overheat, increasing the risk of a blowout, especially during high-speed travel. Overinflated tyres, on the other hand, reduce grip and increase the likelihood of losing control, particularly in wet conditions.

Improved fuel efficiency

Correctly inflated tyres reduce rolling resistance, which directly impacts fuel consumption. Studies suggest that underinflated tyres can reduce fuel efficiency by up to 3%.

Extended tyre life

Maintaining the right tyre pressure minimizes uneven wear and tear. Overinflation wears out the centre tread faster, while underinflation causes excessive wear on the outer edges.

Enhanced performance

Proper tyre pressure ensures optimal handling, braking, and overall vehicle stability. This is crucial for both everyday driving and emergency manoeuvres.

What are the consequences of incorrect tyre pressure?

Underinflation

○ Reduced fuel efficiency

○ Increased tyre wear

○ Poor handling

○ Greater risk of tyre failure

Overinflation

○ Decreased traction

○ Rougher ride

○ Uneven tread wear

○ Higher likelihood of tyre punctures

How to check tyre pressure?

1. Use a reliable tyre pressure gauge

Digital gauges are more accurate and easier to use than traditional stick gauges.

2. Check when tyres are cold

Tyre pressure rises when tyres are warm from driving. For accurate readings, check the pressure when the vehicle has been stationary for at least three hours.

3. Compare with manufacturer’s recommendations

Ensure the measured PSI matches the recommended levels for your vehicle. Adjust accordingly if the pressure is too high or low.

4. Don’t forget the spare tyre

Many drivers overlook the spare tyre, which could be underinflated when needed in an emergency.

How to maintain proper tyre pressure?

Regular inspections

Check your tyre pressure at least once a month and before long trips. Tyres naturally lose air over time, even without punctures.

Invest in a tyre inflator

A portable tyre inflator can help you adjust tyre pressure conveniently at home or on the go.

Monitor tyre condition

Look for signs of damage, such as cracks, bulges, or excessive wear, as these may indicate pressure issues.

Use tyre pressure monitoring systems (TPMS)

Many modern vehicles are equipped with TPMS, which alerts you when a tyre is underinflated. However, it’s still essential to manually check the pressure periodically.

Seasonal considerations for tyre pressure

Tyre pressure can fluctuate with temperature changes. For every 10°C (18°F) drop in temperature, tyre pressure decreases by approximately 1 PSI. During winter, it’s crucial to check and adjust your tyre pressure more frequently.

Link between tyre pressure and driving habits

Load and speed

Carrying heavy loads or driving at high speeds can affect tyre pressure. Always adjust the pressure according to the manufacturer’s guidelines for specific load conditions.

Terrain

Off-road or rugged terrain driving may require adjusting tyre pressure to improve traction and reduce the risk of tyre damage.

What are the signs of incorrect tyre pressure in a vehicle?

● Steering feels heavier than usual (underinflation)

● Bumpy or uncomfortable ride (overinflation)

● Uneven tread wear

● Increased stopping distances

Conclusion

Maintaining the correct tyre pressure is a simple yet essential aspect of vehicle safety and efficiency. Regular checks, adjustments, and a proactive approach to tyre care can prevent costly repairs, save fuel, and enhance driving performance. Make tyre pressure maintenance a priority to enjoy a smoother, safer, and more economical journey.