Wheels with radius R13 remain one of the most common for budget and compact cars - from VAZ 2108/2109 up to Daewoo Matiz or Renault Logan first generations. Despite its apparent simplicity, the question tire pressure R13 causes more controversy than it seems: some drivers blindly follow “popular” advice (“download 2.0 and drive”), others ignore the manufacturer’s recommendations, and still others completely forget to check the pressure until the car begins to “float” on the road. Meanwhile, incorrect tire pressure reduces tire life by 20–30%, increases fuel consumption by 3–5% and significantly increases the risk of aquaplaning or tire rupture at high speed.

In this article we will figure out what pressure should be in the tires R13 for different operating conditions (city, highway, winter/summer), how to properly measure and inflate it, and also what the dangers are under-inflated, so pumped up rubber Let’s look separately at the myths - for example, why the advice “reduce the pressure by 0.2 bar in winter” can be dangerous, and what the inscriptions actually mean MAX PRESSURE on the sidewall of the tire.

The first thing to remember: There is no universal pressure value for R13. It depends on:

  • 🚗 Vehicle models and weights (for example, for VAZ 2110 and Chevrolet Aveo standards will be different).
  • ⚖️ Downloads (empty interior vs. full trunk + passengers).
  • 🌡️ Season (in winter the pressure drops by 0.1–0.2 bar due to the cold).
  • 🛣️ Type of roads (for off-road driving, it is sometimes recommended to lower the wheels a little).

The main source of accurate data is sticker on driver's door pillar or instruction manual. If it is not there, you can focus on the average values ​​from the table below:

Car model Tire size Front wheel pressure (bar/atm) Rear wheel pressure (bar/atm)
VAZ 2108/2109/2113/2114/2115 175/70 R13 1.9–2.0 1.9–2.0
VAZ 2110/2111/2112 175/65 R13 or 185/60 R13 2.0–2.1 2.0–2.1
Daewoo Matiz 155/65 R13 2.1–2.2 2.0–2.1
Renault Logan (1st generation) 185/65 R13 2.2 2.2
Chevrolet Aveo (T200/T250) 175/70 R13 or 185/60 R13 2.1–2.2 2.0–2.1

Please note: for winter tires some manufacturers recommend increasing the pressure by 0.1–0.2 bar (for example, if you pump 2.0 in the summer, you should set it to 2.1–2.2 in the winter). This is due to the fact that in cold weather the air compresses and the actual pressure in the tire drops. However this rule is not universal - for cars with R13 and narrow tires (for example, Matiz) winter pressure is often left unchanged so as not to impair grip.

📊 How often do you check your tire pressure?
Once a week
Once a month
Only before long trips
When I notice that the car is acting strange
I never check

How to correctly measure R13 tire pressure

Checking pressure is a simpler procedure than it seems, but there are nuances here too. Here are the step-by-step instructions:

  1. Choose the right time. Pressure is measured at cold tires (the car must stand for at least 2–3 hours or drive no more than 3 km at low speed). If you have just arrived, add to the pressure gauge readings +0.2–0.3 bar - heating the tire increases the pressure.
  2. Remove the cap from the nipple. Check for dirt or corrosion - they can damage the valve.
  3. Connect the pressure gauge. Press it firmly so that the air does not escape. Electronic pressure gauges are more accurate than mechanical ones (error up to 0.05 bar versus 0.1–0.2).
  4. Compare the readings with the norm. If the pressure is lower, pump it up; if it is higher, bleed the air by pressing the nipple pin.

Modern cars are often equipped with a system TPMS (tire pressure monitoring), but it only works when critical deviation (usually ±0.5 bar). For precise control, it is better to use a separate pressure gauge.

Working pressure gauge (mechanical or electronic)

Compressor or pump (if you need to pump it up)

Flathead screwdriver or nipple cap (in case of clogging)

Valve cleaning cloth

Pen and notepad (to record readings on all wheels) -->

Important point: pressure in spare wheel (if it is full-size) must correspond to the standard for the rear wheels. In a “dokatka” (narrow spare tire) the pressure is usually higher - for example, 4.2 bar.

Consequences of incorrect tire pressure R13

Both underinflated and overinflated tires R13 lead to serious problems. Let’s figure out what exactly each deviation threatens:

Underinflated tires (pressure below normal by 0.3 bar or more)

  • 🔥 Overheating of rubber. At low pressure, the tire sidewalls flex more, friction increases - this leads to cord delamination and the risk of a tire exploding at speed.
  • 💰 Increased fuel consumption. Rolling resistance grows by 5–10%, and with it the engine's appetite.
  • 🚗 Deterioration in controllability. The car “floats” in turns, the braking distance increases by 10–15%.
  • 🌊 Risk of aquaplaning. Water does not have time to be forced out of the contact patch, and already at a speed of 60–70 km/h the car can “float up”.

Overinflated tires (pressure 0.3 bar or more above normal)

  • 🛑 Reduced grip. The contact patch decreases, and the car “holds” the road worse, especially on wet asphalt.
  • 🔊 Increased noise. A hard tire transmits vibrations and knocks from bumps more strongly.
  • 💥 Risk of suspension damage. Impacts from holes and bumps are not absorbed by the rubber, but are transmitted to the racks and levers.
  • 📉 Uneven wear. The central part of the tread is erased, and the sidewalls remain almost new.
What happens if you drive with different tire pressures?

If the pressure in the wheels of one axle differs by 0.2 bar or more, the car begins to “steer” to the side when moving in a straight line. This is due to different rolling resistance. Additionally, wear on the suspension (especially wheel bearings) and steering increases. When braking, the car may skid.

Critical case: if the tire pressure R13 fell below 1.5 bar, you can’t drive it - there is a high risk of “dismounting” (the tire coming off the rim) or damage to the cord. In such a situation, you need to either pump the wheel up to normal or install a spare tire.

Myths about R13 tire pressure: what's true and what's not

There is a lot of “folk” advice around the topic of tire pressure, which not only does not help, but also harms. Let's look at the most popular:

Myth 1: “In winter you need to lower the pressure by 0.2 bar for better grip”

❌ Reality: This rule is only valid for wide tires (for example, R17–R19) on SUVs. For narrow tires R13 (especially on light cars like Matiz or VAZ 2108) reducing pressure only worsens handling and increases braking distance. In winter, it is more important to monitor the pressure did not fall below normal because of the cold.

Myth 2: “R13 tire pressure should be the same front and rear”

❌ Reality: For most passenger cars with front-wheel drive, the pressure in the rear wheels can be 0.1–0.2 bar belowthan in the front ones (see table above). This is due to weight distribution: the engine and gearbox put more stress on the front axle.

Myth 3: “The maximum pressure is indicated on the sidewall of the tire - that’s what you need to pump.”

❌ Reality: Digit MAX PRESSURE (for example, 3.0 BAR) on the tire - this is tensile strength, not a recommendation. Inflating to this value is dangerous: the rubber will become hard, and the contact patch will decrease to a critical size.

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If you often drive with a full load (4 passengers + luggage), increase the rear tire pressure by 0.2 bar above normal. This will compensate for suspension sagging and prevent overheating of the rubber.

How often to check tire pressure R13

Recommended inspection frequency:

  • 📅 Every 2 weeks — in normal conditions (city, highway).
  • ❄️ Every week in winter — due to temperature changes, the pressure may “change” by 0.1–0.3 bar.
  • 🚗 Before every long trip (from 200 km).
  • 🔧 After tire or wheel repair (for example, after trimming).
  • 🛠️ After a strong blow (if you hit a curb or a hole).

It is also worth checking the pressure:

  • 🌡️ In case of sudden cold or warming (for example, if it was −10°C at night and +10°C during the day).
  • 🔄 After replacing the wheels (for example, changing shoes from summer tires to winter ones).
  • ⚠️ If you notice that the car is “pulling” to the side or the steering wheel has become heavier.

Simple lifehack: Train yourself to check your pressure every time you fill up. Most gas stations have free compressors with pressure gauges - it will take no more than 5 minutes.

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Even if the wheel looks normal visually, the pressure may be 0.3–0.5 bar below normal. The tire begins to “sag” only when the pressure is lost by 30% or more - by this point the rubber is already wearing out at an accelerated rate.

What to do if there is no pressure gauge: alternative ways to check

The ideal option is to always carry a pressure gauge with you (costs from 300 rubles). But if it is not there, you can use the “old-fashioned” methods (although they are less accurate):

Method 1: Visual inspection

🔍 Look at the tire from the side. If she sags under the weight of the car (especially noticeable on the front wheels), the pressure is most likely below normal. However, this method only works when strong under-pumping (from −0.5 bar).

Method 2: Hand test

🖐️ Press the tire with your hand. If the rubber flexes easily (like plasticine), the pressure is low. If it almost doesn’t give in, it’s probably over-inflated. The method is subjective and depends on the pressure applied.

Method 3: Wet test

💧 Wet the tire with water and look at the contact patch with the road. If the strip is wet alreadythan the tread width, the pressure is too high. If the strip wider - low. The method only works on a flat surface.

⚠️ Attention: All “folk” methods provide only an approximate estimate. For accurate pressure measurement necessarily use a pressure gauge. For example, a tire may look fine but be underinflated by 0.3 bar - enough to increase fuel consumption and accelerate wear.

How to properly inflate R13 tires: step-by-step instructions

If the pressure is below normal, it needs to be restored. Here's how to do it right:

  1. Park next to the compressor. Make sure the hose reaches all wheels. At gas stations, the compressor is usually located at the pumps.
  2. Remove the caps from the nipples. Put them in your pocket or in a visible place so you don't lose them.
  3. Connect the compressor hose. Place the tip firmly onto the nipple and lock the lever (if equipped).
  4. Turn on the compressor. Pump air in short bursts (5-10 seconds each), periodically checking the pressure with a pressure gauge.
  5. Control the process. As soon as the pressure reaches normal (for example, 2.0 bar), immediately turn off the compressor. Overinflating a tire is just as harmful as underinflating it.
  6. Check for leaks. After pumping, moisten the nipple with soapy water - if bubbles appear, the valve is leaking air and needs to be replaced.

If you're pumping up your tires nitrogen (which is sometimes practiced to reduce rubber oxidation), remember:

  • Nitrogen does not replace regular blood pressure checks - this also needs to be monitored.
  • The benefits of nitrogen (smaller pressure change due to heat) are only noticeable in racing or truck tires. For R13 on a passenger car the difference is minimal.
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After pumping, always check the pressure with a pressure gauge - automatic compressors at gas stations often “lie” by ±0.2 bar. It's better to double-check yourself.

FAQ: Frequently asked questions about R13 tire pressure

❓ Is it possible to drive on R13 tires with different pressures at the front and rear?

Yes, this is normal for most passenger cars. For example, in VAZ 2110 The pressure in the front wheels is often 2.0 bar, and in the rear - 1.9 bar. The main thing is that the difference between the wheels one axis did not exceed 0.1 bar. If the front is 2.0 and the rear is 1.8, this is acceptable. If it’s 2.0 in front and 1.5 in the back, it’s already critical.

❓ Why does the pressure drop again a day after pumping up at a gas station?

There are three possible reasons:

  1. Faulty nipple (valve). Over time, the rubber of the valve cracks and it begins to “etch.” The solution is to replace the nipple (costs 50–100 rubles).
  2. Tire damage. Microcracks in the sidewall or a nail in the tread can cause slow leakage. Inspect the wheel or put it in water - bubbles will indicate the location of the breakdown.
  3. Temperature difference. If it was +20°C during the day and −5°C at night, the pressure could drop by 0.2–0.3 bar. This is normal and does not require repair.
❓ Is it necessary to deflate R13 tires when driving off-road?

For R13 on a passenger car, reducing the pressure (for example, to 1.5–1.6 bar) can help only on sand or snow. In other cases (dirt, stones, bumps) this will lead to:

  • Risk of “dismounting” (tire coming off the rim).
  • Overheating of rubber and damage to the cord.
  • Deterioration in handling when returning to the asphalt.

If you decide to flatten the tires, do not reduce the pressure below 1.6 bar and drive at a speed no higher than 40 km/h.

❓ What pressure should I set for R13 tires on a trailer?

For car trailers (e.g. MZSA or Sturdy) with wheels R13 pressure is usually recommended 2.5–3.0 bar. The exact value depends on the load capacity:

  • Up to 500 kg - 2.5 bar.
  • 500–750 kg - 2.8 bar.
  • Over 750 kg - 3.0 bar.

Always check the norm in the instructions for the trailer - it may differ!

❓ Is it possible to inflate R13 tires to 3.0 bar to save fuel?

No, it's dangerous and ineffective. Yes, at a pressure of 3.0 bar the rolling resistance will decrease slightly, but:

  • Road grip will deteriorate (especially on wet asphalt).
  • The suspension will take more shock from bumps.
  • The central part of the tread will wear off 2-3 times faster.

Fuel savings will be no more than 1–2%, and risks and wear and tear will increase many times over. The optimal solution is to maintain pressure on upper limit of normal (for example, 2.1 instead of 2.0).