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Category: tire

TPMS a known system that can save your life while driving. By Owinje Peter.


One major reason for maintaining proper tire pressure is to increase your safety and safety of other road users on the road. Proper tire pressure will certainly, improve your vehicle’s handling; decrease tire wear; reduce braking distance; increase water dispersion while decreases the possibility of hydroplaning; reduce rolling resistance, i.e. the force require to roll a loaded tire and enhance fuel economy. Keeping correct air pressure in your tires helps your tire to last longer and to be safer on the road. These explain why TPMS sensor is important in your car.

TPMS means Tire Pressure Monitoring system and it is developed to alert the drivers or motorists when the air pressure in their vehicle’s tire is too low or dropped below the manufacturer recommended level that could create unsafe driving conditions.

TPMS alerts you if your tire is under-inflated or overinflated. TPMS indicator is usually located on the dashboard. It is designed like horseshoe-shape with an exclamation point in the center. Once the TPMS illuminates on the dashboard, all you need to do at first is to check your tire pressures with a gauge to determine the tire that needed air pressure.

How to read a TPMS warning light with meaning

  1. When the light turns on and stays on while driving: it means one or more of the tires are under-inflated you need to check all the tires in order to determine the under-inflated tire and add the correct air pressure.
  2. When the light turns on and off: this probably happen when the temperature or the heat builds up from driving a vehicle fluctuates.
  3. When the light blinks or flashes for about 60 to 90 seconds when you start your car and later stays on: it means the Tire Pressure monitoring System is faulty all you need to do is to visit a service centre with your car to correct the fault.

TPMS Limitations

  1. The system may be set to give warning below the tire pressure needed to carry the load in the vehicle.
  2. A time the sensor may not be able to give an accurate tire pressure data to the on-board computer.
  3. The system may not be able to correctly determine if one tire is too low than the other.
  4. The system may also not be able to correctly determine whether the tires are losing air pressure at the same rate.


In view of these limitations it means TPMS is not a replacement for regular tire pressure checks. Therefore, it should be part of your responsibility as a car owner to check once in a month and before a long trip and when carrying heavy load.


Don’t Gamble with Your Life: Here’s How Not to Let Your Car Tire Kill You By: Owinje Peter

You must know the tire in your car. In fact, you are at risk if you don’t know the tires that move you around, l personally asked some drivers or motorist two or more questions about their car tires but, their response to my questions show to me that their car tires may put them at risk or bring to them untimely death.

It is unfortunate that most drivers don’t have any vital information on the round black objects that move them around. Such motorists or drivers may pose a high risk on themselves and other road users that is why it is important for you as a motorist to know much about the tires on your car. Here is some of the important information you need to know:

M/S; M+S; MS or M&S:When you see any of these letters on your tire it means such tire has the ability to move your vehicle on a snow and muddy area, with these letters on your tires show that the tires meet the Rubber Manufacture Association guidelines for mud and snow tire.

The Tire Width:235 is the width of a tire measure in millimeters (mm). It is usually measure from sidewall to sidewall. However, the measurement is determined by the size of the rim.

The Tire Aspect Ratio:Aspect ratio is a number that shows the height of the tire from the head to the top of the tread. This is always expressed in percentage of the width. For example, if the aspect ratio of a tire is 75 then the height of the tire is 75% of the given width i.e. (7 5×235/100) =176.25mm. Therefore, the aspect ratio is 175.25mm; hence, the smaller the aspect ratio the wider the tire in relation to is height.

The Tire Traction:Tire traction is usually rated as AA; A; B or C. AA is the highest grade in the rating follow by A, B and C respectively. This rating base on the tire ability to stop a car on wet concrete or asphalt, however, when you see a tire carrying any of these letters on its sidewall, it is simply, showing the tire traction ability of the tire. It is usually written like this on the tire Traction AA; Traction A; Traction B or Traction

C.Temperature:The tire temperature rating is a measure of how well the tire dissipates heat and how well it handles the buildup of heat. The temperature grade is applied to a properly inflated tire that is not over loaded. However, overloading, under inflation or excessive speed are all notable factors that can make your tire to build up heat and excessive heat build up on your tire can cause your tire to wear out faster and it may even lead to tire failure. It is important to note that, tire temperature is usually rated as A, B or C. So when you check the side wall of your tire and you see any of these following: Temperature A or Temperature B or Temperature C. It simply shows you the temperature ability of the tire.

The Tread Wear:First and foremost, please note that the higher the tread wear number the longer you can expect the tread to last. Before the tread numbers can be generated, the tire must be tested in controlled conditions on government test track. However, since no one will be expected to drive his or her own car

on exactly, the same surface at the same speed as the government testing track then, the numbers are not accurate indicator of how long your tread will actually last, but it is a good relative measure, therefore you can expect the tire that carries or has lager number to last longer than the one with smaller number. However, the tread wear number is usually written on the tire side wall like this: Tread wear 440 etc.

Service Description:The service description of a tire consists of two major areas which are Load rating and Speed rating.

  • Load Rating: This is also a number correlates to the maximum load rated for the tire. It shows to us the maximum Kg that a tire can carry. Therefore, a higher number means that the tire has the higher loading capacity. Nevertheless, a separate note on the tire usually written after the loading rating indicates the loading rating of your tire at a given inflation pressure. E.g.

Max. Load 880 kg

(35-psi) Max. Press. Standard load

This is an example of how the load rating and the recommended air pressure are written on your tires.

Speed Rating: The letter that follows the load rating indicates the maximum speed allowable for such tire as long as the weight is at or below the rated load. For instance, letter S indicates that the tire can handle speed up to 112 mph i.e. (180.246 kph).

The Tire Manufacturing Date:Whenever you want to buy or get a new tire, one of the first things you need to consider or look for is the manufacturing date of the tire you want to buy. This is because a tire is expected to expire after six (6) of its production or manufacturing date. It does not matter whether such tire is used or not, a tire expires after six (6) year of production. Why? It is because tires deteriorate naturally day after day and at the expiration of six (6) years the quality of such tires must have reduced drastically. Hence, it is possible to buy a brand new tire that has not been used before which is indeed an expired tire from the store or seller, that is why you need to check the manufacturing date of the tire before buying it.

How to Check a Tire Manufacturing Date:If you do not know how to check the date from the sidewall of a tire you may end up buying an expired tire. However, the tire manufacturing date is usually different from the common way we are used to write date of an event. For example the date is usually written like this (1012) or (1314) or (3613) etc. However, it is important to note that the first two (2) figures refer to the week of production while the last two (2) figures refer to the year of production. For instance, (1012) means 10th (tenth) week of the year 2012, (3613) means 36th week of the year 2013, etc. Therefore, if the manufacturing date of a tire is (1314) such tire is expected to expire after six (6) years of the said date which is (1320).

Source: Howstuffworks.

Poor Tire Pressure: A common habit among Motorist in Developing Countries.

Do you give much attention to your car’s tire?

Kindly permit me to start this article by asking a question and my question is: how much attention do you really give to your car’s tires as needed? I guess you only give little attention to the tires when they go flat by taking them to the road side vulcanizer to inflate your tires. Many car owners in developing countries do not have much care about their tires that move them all around on the road. Many lives have been lost while many others sustained permanent injuries on motor accidents due to poor maintenance of our tires. If your car tire is poorly managed it will pose a serious danger to the car owner and other road users. This is why this social problem must be eradicated for the benefit of all road users.

Do you know your car manufacture recommended tire pressure?

The truth of the matter is that most drivers or car owners in developing countries do not know the manufacturer recommended tire air pressure that their cars required. This is the bane of the problem. Furthermore, Vista Press and Distribution Logistics Limited (a company base in Nigeria), with the Federal Road Safety corps (a government agency for road safety in Nigeria), carried out a survey and exercise at some motor parks in Nigeria. The result of their survey shows that most vehicle owners or motorists in Nigeria do not know that their vehicle tires have manufacturer recommended safe air pressure. According to the managing Director of the said company, he discovered that most motorists leave the decision about their air pressure in the discretion of the road side vulcanizer or local tire mender or tire repairer, who is completely ignorant about such information. The result is that the vulcanizers almost in all cases over inflate the tire pumping, some to as high as 70psi instead of the recommended Pressure of 35psi he concluded. Source: The Punch Newspaper, Nigeria, Dated: 11/04/2012.

Over pumped or under inflated tire is dangerous.

However, when tires are over pumped it will lead to imprecise handling, in other words, it will be difficult for the drivers to handle such vehicle precisely, as a result of this the driver of such vehicles drive roughly on the road, consequently, it makes the tire’s treads to wear out untimely. Moreover, under inflated tires will reduce your fuel economy, in other words, it will make your vehicle to consume more fuel, in addition, it can also make your tire to generate unusual heat that can damage the life span of your tires. A vehicle with under inflated tires will be difficult for drivers to also handle properly and it may fail at high speed. Therefore, it is wrong and even dangerous if your car tires are over pumped or under inflated. Hence the saying, two wrong things can never make a right. To avoid any likely problem due to over pumped tires or to avoid traffic accident due to under inflated tires, it is advisable as a driver to pay more attention to the manufacturer recommended air pressure. It is also advisable for all motorists to check their vehicles’ tires pressure including their spare tire at least once in a month. This is because tire is expected to lose about one pound of pressure per month through the normal seepage.


You need to know the right time to check your tire pressure.

In addition, to know the accurate air pressure in your tires, it is advisable to check the air pressure when the tires are cold and do not fail to follow the manufacturer inflation recommended in your vehicle owners manual or on the tire information label located in the glove box. Nonetheless, due to the influence tire pressure has on vehicle safety and efficiency, it is important for all car owners in developing countries to properly maintain their vehicles tires for the benefit of road users.



Source: HowStuffWorks



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