One of the most confusing aspects of car tires has to do with its useful life. It is true that they must be changed frequently but it is also true that a premature change can end up costing us money. So learning to make the most of your tires is essential.
When we have an appointment, it is serious to be late. But it is not good to arrive much earlier. Among other things because we lose time that we could have spent on other things. Well, the same thing is happening with car tires. If we delay their change in excess, this may end up being a source of problems and risks. But if we advance it, it is possible that we are spending money on changing some tires that we could have continued to use without complications.
Obviously, knowing when it is time to start looking for new tires is not a closed science, but it is something that requires certain knowledge. So so that you do not get lost on the road, we will give you the necessary guidance so that you hurry your tires safely and maximize the arrival of that expense.
One of the aspects that tells us if we can continue to hurry some tires or if they should be replaced is the depth of their drawing. When the tire leaves the factory, it has a wide depth, which is reduced as the rubber on the outside of the tire is worn out.
Legally, we should not drive on tires with less than 1.6 millimeters in its drawing, although for greater safety it may be convenient to change them when the drawing is less than 2 millimeters. However, if your tires reach this state in summer or in times of little rain, you can hurry them a little more.
To check the depth of the drawing, simply look for the wear signs that are included in the tire channels. These witnesses are small rubber studs located inside the canal with the legal height of 1.6 millimeters that we have indicated. When the blocks are flush with the drawing, it is a sign that it is time to change wheels. In any case, the verification should be carried out at least three different points of the wheel.
We have talked about the depth, but it is also necessary to talk about the drawing of the tire as a whole. As long as this drawing shows a regular and homogeneous wear, we will not have problems to hurry the tire to the legal limit that we have been commenting on.
However, this process will not be possible if areas with irregular wear appear. This is what happens when we inflate the tire more or less than the pressure indicated by the manufacturer. In this case, the drawing deteriorates in the center or on the sides, which prevents it from rushing too much, since the reference now marks the most worn area.
Nor are tires with excessive wear on one of the sides, interior or exterior, very useful. This wear is caused by a bad alignment of the tires, so that they circulate turned and not straight when we place the steering wheel in the central or natural position. Something that causes this particular deterioration and that can be a risk.
Finally, with respect to the drawing, in case we see wires or the tarps of the tire somewhere on the surface of the tire, then it will not only be a sign that we cannot take advantage of the tires, but we have to change them immediately.
Since the tires do not have an expiration date, there is also no time after which we must change them mandatory. However, we must perform a visual inspection of the state of the rubber, which over time may lose its adherent properties with respect to the ground.
This process is called crystallization and is common in tires that are very old or have not been properly preserved. This problem can be perceived visually or by touch. If we look at the rubber, we will see how it has small glitters, coming from the crystallized elements on its surface. Regarding the touch, when passing the hand on a tire in good condition we will notice how the rubber prevents a simple movement, because the tire maintains its adhesion. This does not happen with those that are crystallized, in which the hand slips directly. Well that happens on the road, so these tires would not be usable.
Advantages of taking advantage of the tires
In case you are still not convinced if you should take advantage of your tires or not, we leave you some of the advantages that this process has. The first and main, in addition to obvious, is that you will make better use of your investment. If you did your homework well when looking for the best tires ( here you can find some options to buy ) for your car and bet on a quality product, there is no reason to change it ahead of time. In fact, a tire from a manufacturer known and properly adapted to your vehicle lasts longer than one that does not comply with these principles.
As if that were not enough, there are aspects in which used tires have a tendency to work better when they are already a little old. An example we have in the braking that, according to some studies of Michelin, is reduced around 3.5 meters from a speed of 100 kilometers / hour in tires to 40% of life than some newly released. The same goes for wet braking that reduces the stopping distance by about 4 meters to 80 kilometers per hour. And it also happens with fuel consumption, which is increased by 4% in a new tire compared to one already worn.
The explanation is simple. As with other components of the vehicle, the tires need a certain amount of running time to start doing their best. This shooting involves eliminating the outer layers of the tire to reach the most efficient rubber part, located below. A premature change of tires prevents taking advantage of these advantages.