Traffic safety on the road directly depends on the condition of the contact spot of the wheel with asphalt, so the rules of operation of car tires should know every driver. Many car owners perceive rubber as an expendable material, forgetting that it provides grip, handling and braking efficiency in all weather conditions. Ignoring basic principles of tire care can lead to unpredictable car behavior at high speed or aquaplaning during a downpour.
Modern production technologies allow you to create high-speed and all-season models, but none, even the most expensive tire, will not last the stated term without competent maintenance. Resurrection of rubber It is determined not only by mileage, but also by many factors: driving style, suspension condition, road surface and correct storage in the off-season. In this article, we’ll look at the key aspects that will help you save money and, more importantly, save your life.
It is worth noting that visual inspection does not always give a complete picture of the state of the cord or the inner layers. Often defects are hidden, and only regular diagnostics on professional equipment can reveal hidden threats. Understanding the markings and speed indices will allow you to make the right choice when buying a new set, and knowing the nuances of operation will prolong the life of existing wheels.
Pressure control: the basis of durability
The most common mistake that reduces the life of rubber is to ignore the manufacturer's recommendations regarding the tire pressure. Insufficient pressure leads to overheating of the tire frame during movement, since the sidewall begins to deform stronger than usual. This causes layering and can cause sudden rupture at high speed, which is especially dangerous on highways.
On the other hand, pumped tires lose their shock absorbing properties, transferring all the impacts from road irregularities to the suspension elements and body. The central part of the tread in this case wears out much faster than the shoulder zones, which leads to uneven abrasion and a decrease in the effectiveness of braking on wet roads. Pressure should be checked exclusively on "cold" rubber, since when heated from friction against the road, the air inside expands, distorting the gauge readings.
For accurate diagnosis, it is recommended to use your own checked pressure gauges, since readings at gas stations are often inaccurate due to wear and tear of equipment. Regularity of inspections should be at least once every two weeks, and before each long trip, control is mandatory.
For example, with a full load of the cabin and trunk for a trip on vacation parameters PSI or Bar shall be enlarged according to a table usually located on the driver's door or gas tank hatch.
⚠️ Attention: A sharp drop in ambient temperatures (for example, autumn cooling) leads to a drop in tire pressure. After the first frost, be sure to pump, even if you recently checked the wheels.
Visual inspection and tread depth
The condition of the tread is the main indicator of the health of your wheels. The law sets the minimum allowed depth of the drawing, but for safety, these standards should be considered an absolute minimum, not a recommendation for replacement. For summer rubber, the critical value is 1.6 mm, but already at 3 mm, the efficiency of water drainage drops sharply, increasing the risk of aquaplaning.
When inspecting, pay attention not only to the overall height of the picture, but also to the uniformity of wear. If one side is erasing faster than the other, it is a sure sign of a breach. wheel-mounting angles or problems with the steering elements. Ignoring this signal will cause the new set of rubber to become unusable in one season.
It is also necessary to regularly inspect the sidewalls for cuts, hernias and bloating. A hernia (or bump) on the sidewall indicates a break in the cord threads, and the operation of such a tire is strictly prohibited - it can burst at any time. Small stones stuck in the tread grooves should be removed, as they can gradually pierce the protective layer.
☑️ Checklist of visual inspection
Wear indicators TWI (Tread Wear Indicator) are located at the base of the tread grooves and are indicated by special marks on the sidewall. When the surface of the tire is compared to the height of these protrusions, it is time to replace. Some premium manufacturers apply digital depth markers that disappear as the rubber wears off.
Seasonal replacement and proper storage
Seasonality is the golden rule of operation. The use of summer rubber at temperatures below +7 ° C leads to its “duplication”, loss of elasticity and coupling properties. Winter rubber, which has a softer composition of the mixture, begins to “swim” with summer heat, increasing the braking distance and accelerating wear. All-season models are a compromise and do not provide ideal performance in either winter or summer.
Tire storage in the off-season requires certain conditions to be met so that the material does not lose its properties. Rubber is afraid of direct sunlight, ozone, oils and solvents. The ideal place is a dark, cool room with moderate humidity. Before sending the wheels for storage, it is necessary to wash and dry thoroughly.
| Situation | Summer storage | Winter storage | Recommendation |
|---|---|---|---|
| On the discs. | Horizontal (stop) | Vertical (in row) | Pressure 1.0-1.5 atm |
| No discs. | Vertical (in row) | Horizontal (suspended) | Don't stack. |
| Conditions | Darkness, coolness. | Darkness, coolness. | Away from the heaters |
If the tires are stored on disks, it is better to hang them or put them vertically, periodically turning. Tires without discs, on the contrary, are stored horizontally with a stack, but not too high so that the lower ones do not deform under the weight of the upper ones. To protect against dust and drying, you can use special opaque bags, but not tightly.
Can I store tires on the balcony?
Storing tires on an unglazed balcony is highly undesirable. Ultraviolet destroys the structure of rubber, making it brittle, and changes in humidity and temperature accelerate the aging of the material. If there is no other way out, use dense light-tight covers and try to minimize the time of such storage.
Balancing and downfall
The balancing procedure is necessary for the uniform distribution of the wheel mass relative to its axis of rotation. Even a microscopic imbalance of a few grams at high speed turns into a palpable vibration that destroys the suspension, steering mechanism and the tire itself. Dynamic balancing It is carried out on a special machine with the use of loaders that compensate for heavy points.
The wheel-shattering angles affect how the wheel contacts the road. Wrong angles lead to the fact that the car can lead to the side, and the steering wheel is curved when straight-line movement. The most unpleasant consequence is the “eating” of rubber on one side, which makes the tire unsuitable for further operation even in the presence of a deep tread.
Balancing is recommended for each seasonal reshoes, as well as after repairing the suspension or getting into a deep hole. Descent-shattering should be checked at least once a year or when signs of car withdrawal, replacement of steering elements appear.
Use lithium lubricant for wheel bolts in minimal amounts and only on threads, avoiding hitting the end surfaces of the disc. Excess lubrication can lead to a change in the timing of tightening and spontaneous spinning of the wheel.
Driving style and road conditions
Aggressive driving style with sharp accelerations and emergency braking significantly reduces the life of tires. At the time of slipping, the tread is washed on the asphalt in seconds, and with sharp braking on the wheel, a “flat spot” can form, causing a beat. Smoothness is the key to the longevity of rubber.
Road conditions also make adjustments. Bad roads with pits and sharp edges of potholes are dangerous not only for suspension, but also for the sidewalls of tires. A hit on the edge of a hole at high speed can lead to an instant cut or hernia formation. Gravel and dirt roads are abrasive and quickly erase soft summer rubber.
⚠️ Attention: Avoid contact with oil products, acids and harsh chemicals that can get on the road. If such substances hit the sidewall, wash the area immediately with soap and water, as a chemical reaction can destroy the structure of the rubber.
Long parking also affects the condition of the wheels. If the car is without movement for several months, flat areas of deformation may form in the places of contact of the tire with the ground. It is recommended to periodically distill the car or lift it on the stands, removing the load from the wheels.
Repair and rehabilitation
Not all tire damage is repairable. According to generally accepted standards, only the central part of the tread (about 80% of the width) is considered repairable. Damage in the shoulder zone and on the sidewalls, as a rule, are not repaired, since in these places the load on the frame is maximum, and any patch may not withstand pressure.
There are several types of repair: cold and hot vulcanization, installation of tourniquets or combined flaps (fungi). The most reliable method is the use of fungusIt seals the damage both inside and outside, filling the puncture channel. Tournaments are considered a temporary solution and do not guarantee long-term tightness.
It is important to consider the size of the damage. Holes larger than 6 mm in diameter in the tread are often considered non-repairable, as the integrity of the cord is broken too much. After any repair, the wheel must be rebalanced.
Quality tire repair is possible only in a specialized service using professional equipment and materials. Leaky wheels on the track are a risk that is not worth the saved rubles.
Frequently Asked Questions (FAQ)
Can I put tires with different tread pattern on one axle?
It's not recommended. Different tread pattern means different drainage efficiency and adhesion. This can lead to a skid of the car, especially on wet roads, as the axles will behave differently. The same tyres shall be on the same axle.
What does RunFlat marking on a tire mean?
Technology RunFlat (Ranflat) allows you to move on a flat wheel with zero pressure for a distance of 80-100 km at speeds up to 80 km / h. These tires have reinforced sidewalls that can withstand the weight of the car without air, but require a pressure control system (TPMS).
How often should you change your tires even if the tread is still deep?
Rubber is aging. Even with low mileage and deep tread, it is recommended to change tires older than 5-6 years of operation. After 10 years from the date of manufacture (indicated on the sidewall as four digits in the oval, for example, 3518 - 35th week of 2018), the use of tires is considered unsafe due to loss of elasticity.
Does the color of the disc affect the heating of the tire?
In theory, black discs heat up more strongly in the sun, which can slightly increase the temperature and pressure inside the tire. However, in real-world conditions, this effect is minimal and has little or no effect on wear or safety compared to other factors such as speed or pressure.