You check your phone 100 times a day. You check your petrol level before a long trip. You check your mirror before changing lanes.
But when did you last check your tyre pressure?
If you cannot remember, you are not alone. Most drivers ignore tyre pressure until something goes wrong.
This blog will tell you why tyre pressure matters, what happens when it is wrong, and how to check it correctly.
What is Tyre Pressure?
Tyre pressure is the amount of air inside your tyre. It is measured in PSI (pounds per square inch).
Every car has a recommended pressure. This is set by the car manufacturer after testing. It balances safety, comfort, fuel efficiency, and tyre life.
You can find the recommended pressure in three places.
Inside the driverās door frame.
On the fuel filler flap.
In your car ownerās manual.
Do not use the number written on the tyre sidewall. That is the maximum pressure the tyre can handle. Not the recommended pressure for your car.
What Happens When Pressure is Too Low
Here is what happens inside the tyre. ā”ļø
The sidewalls flex too much. This creates heat. Too much heat weakens the tyre structure. The tyre can fail suddenly.
Here is what happens to your driving.
Fuel consumption increases. The engine has to work harder.
The car feels sluggish. Steering becomes heavy.
Braking distance becomes longer.
The edges of the tyre wear out faster. Tyre life is reduced.
Blowout risk increases significantlyy
What Happens When Pressure is Too High
High pressure means the tyre has too much air. The tyre becomes hard and rigid.
Here is what happens inside the tyre.
The tyre cannot flex to absorb shocks. Every pothole and bump hits the tyre hard.
Here is what happens to your driving.
The ride becomes harsh and uncomfortable.
Less tyre touches the road. Grip is reduced. This is dangerous in rain.
The center of the tread wears out faster. The edges still have life but the tyre is useless.
Braking distance becomes longer.
Blowout risk from pothole impacts increases.
What is Correct Tyre Pressure ā
Correct pressure means the tyre has exactly the amount of air your car needs.
Here is what happens with correct pressure.
The tyre wears evenly across the tread. Tyre life is maximized.
Fuel efficiency is optimal. You save money at the petrol pump.
Braking distance is shortest. You stop faster in emergencies.
Handling is predictable. The car responds exactly as you expect.
Blowout risk is lowest. You drive with peace of mind.
How to Check Tyre Pressure Correctly
Follow these steps. It takes 2 minutes. š
Step 1
Buy a digital tyre pressure gauge. Keep it in your glovebox. Do not rely on petrol station gauges. They are often broken or inaccurate.
Step 2
Check pressure when tyres are cold. This means before you have driven the car or at least 3 hours after driving.
Step 3
Remove the valve cap from the tyre.
Step 4
Press the gauge firmly onto the valve. You will hear a small hiss of air. That is normal.
Step 5
Read the number on the gauge. Compare it to the recommended pressure for your car.
Step 6
If pressure is low, add air. If pressure is high, release some air.
Step 7
Replace the valve cap.
Step 8
Repeat for all four tyres and the spare tyre.
How Often Should You Check
Check tyre pressure at least once a month.
Check before every long trip.
Check after a large change in temperature. Cold weather reduces pressure.
Check after hitting a large pothole. Impact can cause sudden pressure loss.
The ā¹5 Coin Trick for Tread Depth
Pressure keeps the tyre inflated. Tread keeps the tyre gripping. You need both.
Here is how to check tread depth with a ā¹5 coin.
Insert the coin into the tread groove.
If you can see the edge of the coin, your tread is below 3mm. Replace the tyre.
The legal minimum in India is 1.6mm. But for safety, replace at 3mm.
Warning Signs Your Tyre Pressure is Wrong
You do not always need a gauge. Your car will tell you.
Sign 1
The car pulls to one side while driving.
Sign 2
The steering wheel vibrates at certain speeds.
Sign 3
You hear a thumping sound from one corner of the car.
Sign 4
One tyre looks lower than the others when you look at the car.
Sign 5
Your fuel efficiency has dropped suddenly.
Sign 6
The tyre pressure warning light comes on in your dashboard.
If you notice any of these signs, check your pressure immediately.
Common Mistakes Drivers Make
Mistake 1
Checking pressure after driving. Hot tyres show higher readings. You will think pressure is correct when it is actually low.
Mistake 2
Using the number on the tyre sidewall. That is the maximum pressure. Not the recommended pressure.
Mistake 3
Only checking when the tyre looks flat. Many tyres can be dangerously low without looking flat.
Mistake 4
Forgetting the spare tyre. A flat spare is useless in an emergency.
Mistake 5
Over-inflating thinking it gives better fuel economy. It reduces grip and compromises safety.
Tyre Pressure for Different Driving Conditions
City driving with heavy traffic
Use the standard recommended pressure. Stop and go traffic does not require special pressure.
Highway driving
Check pressure before starting. High speeds generate more heat. Incorrect pressure is more dangerous on highways.
Fully loaded car with passengers and luggage
Some manufacturers recommend slightly higher pressure for heavy loads. Check your car manual.
Rainy conditions
Correct pressure is even more important in rain. Low pressure increases hydroplaning risk.
Tyre Pressure and Fuel Efficiency
Wrong pressure wastes fuel.
Low pressure increases rolling resistance. The engine works harder. You burn more fuel.
Experts say under-inflation by just 20 percent can increase fuel consumption by up to 10 percent.
That means for every ā¹5000 you spend on petrol, ā¹500 is wasted because of low tyre pressure.
Correct pressure saves you money.
Tyre Pressure and Tyre Life
Wrong pressure kills tyres faster.
Low pressure wears out the edges of the tread. The tyre becomes useless while the centre still has life.
High pressure wears out the centre of the tread. The edges still have life but the tyre is finished.
Correct pressure ensures even wear across the entire tread. Your tyres last their full life.
Tyre Pressure and Safety
This is the most important reason.
Incorrect pressure increases stopping distance. At 80 km per hour, a few extra metres can be the difference between stopping safely and crashing.
Incorrect pressure reduces grip. In an emergency, your car will not respond the way you expect.
Incorrect pressure increases blowout risk. A blowout at highway speed is one of the most dangerous situations a driver can face.
Correct pressure saves lives.
What is TPMS and How Does It Help
TPMS stands for Tyre Pressure Monitoring System. Many new cars have it.
A sensor inside each tyre measures pressure. If pressure drops too low, a warning light appears on your dashboard.
But there are two things you must know.
First, TPMS warns you when pressure is already low. It does not prevent the problem. It alerts you after the problem exists.
Second, TPMS does not check pressure when it is too high. Over-inflation is also dangerous but TPMS will not warn you.
So do not rely only on TPMS. Check your pressure manually every month.
Quick Summary
Check pressure every month. Use a digital gauge. Check when tyres are cold. Use the pressure in your car manual. Do not forget the spare tyre.
Correct pressure gives you safety, fuel efficiency, and longer tyre life.
Wrong pressure gives you risk, wasted fuel, and premature tyre wear.
Visit Tyre Empire for a Free Pressure Check
Not sure about your tyre pressure? Come to Tyre Empire.
We will check the pressure of all four tyres and your spare tyre. We will inflate them to the correct level.
Free of charge. No pressure to buy anything. Just your safety.
We will also check your tread depth, tyre age, and any visible damage.
Tyre pressure is the most ignored safety check on any car. But it is also one of the most important.
A few minutes once a month. A digital gauge in your glovebox. That is all it takes.
Do not wait for a warning light. Do not wait for a flat tyre. Do not wait for a blowout.
Check your tyre pressure today.
