Should you Replace all four tires? Explained

If you own a car, you know that tyres are one of the most important components of your vehicle. They provide traction, stability, and comfort on the road. However, tyres also wear out over time and need to be replaced periodically. But how do you know when to replace your tyres? Should you replace all four tyres at the same time, or can you get away with replacing just one or two?

Should you replace all four tires? Explained

In this blog post, we will answer these questions and explain the factors that affect tyre replacement. We will also give you some tips on how to choose the right tyres for your car and how to maintain them properly.

Should You Replace All Four Tires at the Same Time?

The answer to this question depends on several factors, such as the type of vehicle, the type of tires, and the degree of wear.

Type of vehicle:

The type of vehicle you drive affects how you should replace your tires. If you have an all-wheel drive (AWD) or four-wheel-drive (4WD) vehicle, you should replace all four tires at the same time.

This is because AWD and 4WD systems require all four tires to have the same size, tread pattern, and tread depth to function properly. If one tire is different from the others, it can cause problems with the drivetrain, such as excessive wear, noise, vibration, or damage. If you have a front-wheel drive (FWD) or rear-wheel drive (RWD) vehicle, you may be able to replace just two tires at a time, as long as they are on the same axle (front or rear). However, you should still match the size and type of the new tires with the old ones to maintain balance and stability.

Type of tires:

The type of tires you have also influences how you should replace them. If you have summer tires or winter tires, you should replace them in sets of four to ensure optimal performance and safety in different weather conditions. Summer tires are designed for warm and dry roads and offer better grip and handling than all-season tires. Winter tires are designed for cold and snowy roads and offer better traction and braking than all-season tires. If you have all-season tires, which are suitable for most climates and road conditions, you may be able to replace them in pairs or individually, depending on the wear level and vehicle type.

Degree of wear:

The degree of wear on your tires also affects how you should replace them. If your tires are worn evenly and have more than 50% of tread life left, you may be able to replace just one tire if it gets damaged or punctured. However, you should make sure that the new tire matches the size, brand, model, and load rating of the old one. If your tires are worn unevenly or have less than 50% of tread life left, you should replace them in pairs or in sets of four to avoid compromising the performance and safety of your vehicle.

When to Replace Your Tires

Should you replace all four tires? Explained

There are several signs that indicate that your tires need to be replaced. Some of them are:

Tread depth: The tread is the part of the tire that contacts the road surface and provides grip. The tread depth is measured in 32nds of an inch and can be checked with a simple penny test. To perform the penny test, insert a penny into the tread groove with Lincoln’s head facing down. If you can see the top of his head, it means that your tread depth is less than 2/32″, which is the legal minimum in most states. If your tread depth is below this level, you should replace your tires as soon as possible.

Tire age: Even if your tires have enough tread depth, they may still need to be replaced if they are too old. Tires deteriorate over time due to exposure to heat, sunlight, ozone, and other environmental factors. As tires age, they lose elasticity and flexibility, which can affect their performance and safety. Most tire manufacturers recommend replacing tires after six years of service, regardless of mileage. You can check the age of your tires by looking at the DOT code on the sidewall, which indicates the week and year of manufacture.

Tire damage: Another reason to replace your tires is if they have any visible damage, such as cuts, cracks, bulges, punctures, or uneven wear. These types of damage can compromise the integrity and structure of the tire, leading to air leaks, blowouts, or loss of control. If you notice any damage on your tires, you should have them inspected by a professional and replaced if necessary.

How to Choose the Right Tires for Your Car

When it comes to choosing the right tires for your car, there are several factors to consider, such as:

Should you replace all four tires? Explained

Size: The tyre placard, which is typically located on the driver’s door jamb, glove box, or fuel door, lists the specifications of your vehicle and the size of your tires. The size of your tires is expressed in a series of numbers and letters, such as P215/65R15. The first letter indicates the type of vehicle (P for passenger, LT for light truck, etc.). The first number indicates the width of the tire in millimeters. The second number indicates the aspect ratio, which is the height of the sidewall as a percentage of the width. The letter R indicates the type of construction (radial). The last number indicates the diameter of the wheel in inches.

Type: The type of your tires depends on the weather and road conditions you drive in. As mentioned earlier, there are three main types of tires: summer, winter, and all-season. Summer tires offer better performance and handling on warm and dry roads, but have poor traction on wet and snowy roads. Winter tires offer better traction and braking on cold and snowy roads, but have poor performance and handling on warm and dry roads. All-season tires offer a compromise between summer and winter tires and are suitable for most climates and road conditions.

Brand: The brand of your tires reflects the quality, reputation, and warranty of the manufacturer. There are many tire brands to choose from, ranging from premium to budget. Some of the most popular tire brands are Michelin, Bridgestone, Goodyear, Continental, Pirelli, Hankook, Cooper, and Firestone. You should choose a tire brand that meets your needs, preferences, and budget.

Model: The model of your tires reflects the specific features, benefits, and performance characteristics of each tire. There are many tire models to choose from, depending on the type, size, and brand of your tires. Some of the most popular tire models are Michelin Pilot Sport 4S (summer), Bridgestone Blizzak WS90 (winter), Goodyear Assurance WeatherReady (all-season), Continental ExtremeContact Sport (summer), Pirelli Scorpion Winter (winter), Hankook Kinergy GT (all-season), Cooper CS5 Ultra Touring (all-season), and Firestone Firehawk Indy 500 (summer). You should choose a tire model that matches your driving style, expectations, and goals.

How to Maintain Your Tires Properly

Once you have chosen and replaced your tires, you should maintain them properly to extend their life and ensure their safety. Here are some tips on how to maintain your tires properly

Should you replace all four tires? Explained
  • Check tire pressure: You should check your tire pressure at least once a month and before long trips. Underinflated or overinflated tires can affect your fuel economy, handling, braking, comfort, and tire life. You can check your tire pressure with a tire gauge or a digital monitor. You should follow the recommended tire pressure for your vehicle, which can be found on the tire placard or in the owner’s manual.
  • Rotate tires: You should rotate your tires every 5,000 to 8,000 miles or according to your vehicle’s maintenance schedule. Rotating your tires means changing their position on the vehicle (front to rear or side to side) to ensure even wear and prolong their life. You can rotate your tires yourself or have them rotated by a professional.
  • Balance tires: You should balance your tires every time you rotate them or when you feel vibration or wobbling while driving. Balancing your tires means adjusting their weight distribution on the wheel to ensure smooth rotation and prevent uneven wear. You can balance your tires yourself or have them balanced by a professional.
  • Align wheels: You should align your wheels every time you replace your tires or when you notice steering problems or uneven wear. Aligning your wheels means adjusting their angle relative to each other and the road to ensure proper handling and stability. You can align your wheels yourself or have them aligned by a professional.
  • Inspect tires: You should inspect your tires regularly for any signs of

The Benefits of Replacing All Four Tires

It might seem like a waste of money to replace all four tyres at once, especially if only one or two of them look old. But there are some good reasons to think about it before giving up on it. First and foremost, you should replace all four tyres to make sure they work well and keep you safe. Each tyre wears and tears in its own way, so even if one or two still have a good amount of tread life left, they may not have the same grip or control as new ones. This difference in grip can make it harder to drive, especially when it’s wet or slippery outside.

Changing all four tyres at once helps keep a vehicle’s suspension system in balance. Different sets of tyres that wear out at different rates can throw off the way the car’s weight is distributed. This can cause other parts, like the steering or suspension, to wear out faster than they should. By putting on a new set of tyres all at once, you make sure that each tyre works the same way on each corner of your car. This puts less stress on other important parts and makes them last longer.

Choosing to change all four tyres at once is more convenient and saves money in the long run. Instead of replacing tyres one at a time over time, which can be a pain and cost extra for fitting and balancing, buying a set of tyres all at once saves time and money in the long run. Also, if you have different tyre types or models on different parts of your car, it can be hard to keep track of them for servicing and when it’s time to replace them in the future.


Most of the time, it is best to change all four tyres at the same time. This may seem like a needless cost, but it makes sure that the car works well and is safe on the road. Uneven tyre wear can make it harder to steer and stop, which can make your car less stable overall. Having tyres with different tread levels can also make it hard to get grip, especially when it’s wet or snowy outside.

By changing all four tyres at the same time, you not only make your new tyres last longer, but you also keep the best driving qualities. So, the next time you think about getting new tyres, remember that it’s best to replace all four for a better and smoother ride.

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Shagufta Shahzadi
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