How many psi for winter tires


Winter Tire Pressure - Finding the Optimal Tire Pressure for Your Car 

For smooth, safe rides and to prolong the life of your tires, it’s important to find the optimal winter tire pressure for your vehicle. To ensure that you have “winter road worthy” tires, consider the following. 

Why Winter Tire Pressure is Different Than Summer Tire Pressure 

There are several misguided beliefs about the appropriate winter tire pressure that can result in costly problems for your car. In order to function properly and avoid problems, tires need to be appropriately filled to the correct pressure year-round. Why? Because weather conditions have an effect on tire pressure. For instance, during the summer months, the air expands in the tires as the weather heats up. During winter’s frigid months, the air pressure contracts. Something else to remember is that as you drive your vehicle, tire pressure increases slightly. 

Why Manufacturer’s Recommendations Might Be Different than Max PSI 

Vehicle manufacturers recommend PSI (pounds per square inch) for tire inflation and it’s the PSI rating you need to inflate your tires to. The PSI recommendation can be found inside the driver’s side door on a sticker, or in the manual. The PSI rating has been designed to deliver the most comfortable ride for your car. So, what about the “Max PSI” rating located on the sidewall? “Max PSI” is the PSI that the tires will support at maximum carry load. For regular, everyday use, tires need to be inflated to the vehicle’s manufacturer recommendation. 

The Optimal Winter Tire Pressure 

To ensure the optimal winter tire pressure follow the manufacturer’s recommendations. If you don’t have your manual handy, try looking for an online version for call a trusted auto repair shop. You can also find the recommended tire pressure on a sticker in the door jam as mentioned above. Some vehicle models place the stickers in the console, on the trunk lid, or on the fuel door.  

The recommended tire pressure is typically between 30 and 35 PSI. Anything less will affect fuel economy and how the vehicle handles. When your tires are filled to the recommended PSI, you’ll benefit from their performance and optimum life. Some vehicle owner manuals advise operating winter tires several PSI higher, usually between 3 to 5 higher than the recommended pressures for all season and summer tires.  

When’s the Best Time to Check Your Tire Pressure?  

All you need to do to determine your current tire pressure is unscrew the fill valve cap and check it using a pressure gauge, right? Well, sort of. Whether or not the car has been driven, and the time of day, can alter the tire pressure enough that you may not get an accurate reading. As an alternative, check the tire pressure in the morning before driving the car. Other things you can do include checking the pressure when you fill up the gas tank, as the temperature changes, or every 30 days. 

We can assist you in determining the best winter tire pressure for your vehicle.  Click here to learn about our general car and maintenance services.

What Should Tire Pressure Be in Winter?

Blog

November 24, 2020

When temperatures decrease, tire pressure can drop. It’s reported that with every 10-degree drop in temps, your tire pressure drops 1 pound per square inch (1 PSI).

Yet low tire pressure may require your heavy equipment to use more fuel to get the job done. It can also cause more wear on your tires. So what should tire pressure be in winter?

30 to 35 PSI is generally recommended as the ideal tire pressure for winter temperatures, but the exact recommended pressure varies depending on the type of vehicle and how low the temperature drops.

Ultimately, it’s important to check your vehicle’s owner’s manual and go with the recommended tire pressure provided. Some tires will have ideal PSI listed on the tire sidewalls. Your machine’s recommended tire pressure might also be listed on a sticker inside the driver’s door.

Dropping temperatures might cause a heavy load to need a higher PSI but start with the recommended PSI. Measure the pressure while your tires are cold. Inflate them to that recommended PSI.

Don’t depend on a visual inspection. Use a tire pressure gauge to measure the tire inflation on your heavy equipment to be certain it is sufficient.

Tire Pressure Variations in Winter

The recommended tire pressure for a car is typically between 30 and 35 PSI. For a four-wheel-drive truck, 35 PSI is the norm. Skid steer tire pressure specifications range from 45-60 PSI. Again, check the manufacturer’s manual for optimal tire pressure.

The following table shows variations of tire pressure in cold temperatures:

Pressure at 68 °F30 psi40 psi60 psi
Pressure at 32 °F26.9 psi36.3 psi54.9 psi
Pressure at 14 °F25.4 psi34.4 psi52.4 psi
Pressure at -4 °F23.9 psi32.5 psi49.8 psi

 

Check your equipment’s tire pressure at least weekly during the winter months. Refer to the manufacturer’s manual for recommendations regarding seasonal changes and optimal tire psi.

Should You Overinflate Your Tires in Winter?

Exceeding the manufacturer’s recommended tire pressure may impact your equipment’s performance and cause premature wear on its tires.

Pneumatic tires, the most used on skid steers, need to be inflated to the proper pressure to function the way they were designed to perform. If at any time you notice your tires sagging after a dip in temperature, measure the PSI of the tires and fill them to capacity.

Underinflating the tire pressure can cause damaging heat and friction on your tires and can cause rubber-compound failure.

Avoid Getting Stuck in Snow

Consider switching the standard tires on wheeled power equipment to snow tires to optimize its performance, especially if you’re using it on pavement or for snow removal.

For best performance and to reduce the risk of damaging your equipment, all tires should be switched (not just two), be the same size and brand, and have the same type of tread.

How Do I Check Tire Pressure?

Check the tire pressure on your equipment before you put the machine in operation.

Find a gauge that is designed to measure your type of machinery and adequate PSI range.  A gauge with a backlit display will make it easy to check your equipment’s tire pressure at dawn when visibility is low.

Don’t forget to replace the valve caps after checking tire pressure!

Digital gauges are ideal (rather than pen or dial) since they’re easier to use and many come backlit with LED lighting. If you’re starting your shift at dusk, that lighting comes in handy.

There are tire pressure sensor systems available that can be used on different types of heavy-duty vehicles, from F150 trucks to large skid steers. Check the literature that comes with these tool kits to ensure one can be used on your machine and still provide you with sufficient tire pressure data.

Power Equipment Sales Support & Service

Eagle Power & Equipment has factory-trained technicians on staff to help you, as well as access to engineers and the factory. We offer on-site field repair and, specifically, tire repair so we encourage you to stop by or call to learn more about our services and repairs.

Posted in Heavy Equipment Safety, News, Skid Steer and tagged heavy equipment, pneumatic tires, power equipment, recommended tire pressure, skid steers, tire pressure on by Eagle Power.

Tire pressure table

Not all car enthusiasts know that a constant check of tire pressure is a necessary procedure.

Many people mistakenly believe that pressure depends on the type of tire - this is a common misconception. Finding out the recommended pressure for a car is easy, just look at a small plate attached to the driver's door. Similar data on the recommended pressure are duplicated on the gas tank hatch and are in the instruction manual issued after the purchase of the car.

If you decide to "shod" your vehicle in tires, the size of which is seriously different from the recommended ones, then be sure to contact the dealership where the car was purchased, they will tell you more about the optimal pressure. Tires with different diameters will have different pressure ratings.

Everyone knows from the school physics course that pressure is measured in Bars, but pressure is also measured in PSI. 1 bar is equal to 1 atmosphere, and 1 PSI is 0.068 atmospheres.

Based on this, to convert PSI to Atmospheres, PSI must be multiplied by 0.068. Let's take a closer look at

40PSI = 40x0.068 = 2.72Bar.

Content

  • How to check the pressure in the vehicle tires
    • Pressure adjustment should be engaged in “cold” rubber
    • Winter rubber
  • Tire pressure table depending on the car and model of the car
    • Hyundai
      • SOLARIS
    • Kia
      • Rio
      • Ceed

You can buy a pressure gauge at your nearest automotive store. Pressure gauges come in several varieties: pointer, mechanical and electronic, the differences are only in the principle of operation, and their readings may differ slightly, but differ.

Which type of device to buy depends on the thickness of the wallet. Any compressor or pump that is used to inflate wheels is equipped with a pressure gauge. It can also be used to measure tire pressure.

If you checked the pressure with a pressure gauge and found that the readings are far from the required ones, and there is nothing to inflate the tire, do not despair, now most gas stations are equipped with compressor units, using which you can easily and quickly inflate tires (this is an absolutely free service). If you accidentally pumped the wheel - just press the nipple and dump the "extra" air. A long drive in a car whose tires are inflated beyond what is necessary, or vice versa, is not inflated at all - is fraught with unpleasant consequences.

When a car's tires are poorly inflated (below the required level), this, first of all, quickly wears out even “fresh” tires, and secondly, it leads to an increase in fuel consumption. Why is this happening? Everything is simple. Due to weak inflation, the tire is subjected to deformation, which leads to an increase in resistance and rapid heating of the rubber. Most importantly, only the edges of the wheel wear out, and with normal inflation, rubber wear occurs evenly, since the entire surface of the tire is in contact with the roadway. The most unpleasant thing is that the car becomes virtually uncontrollable, directional stability is lost, and in the direction of travel the wheels can spontaneously “disassemble”, the vehicle ceases to enter turns normally, the braking distance increases, etc.

To drive 20,000 kilometers on lightly inflated tires, you will need an additional 540 liters of gasoline, which will result in a round sum.

If you overfill your tires, you will also experience poor handling as the tires lose grip on the road. The load on the suspension also increases, which seriously reduces their working life, wear appears and the suspension fails.

Constant driving on tires with high pressure leads to deformation of the wheel and wear of the central part of the tire. The handling of the vehicle becomes more rigid, and long-term operation of the car with such tires will cause many problems.

This can be easily avoided by knowing a simple rule:

Pressure adjustment should be done on "cold" tires

The vehicle should stand still for several hours (while driving, the tires heat up, which leads to an increase in pressure, this should be taken into account, because the recommended pressure is indicated for cold rubber).

Winter tires

A few words about winter tires. When pumping up wheels in winter in a heated garage, remember that an excess of pressure of 0.2 atmospheres is allowed. This is the right fit for regular winter tires and their studded variants. Why go over the limit? It's simple, leaving a warm garage, the tires gradually cool down, therefore, the pressure in them drops.

Have you read the article, but still don't understand it? It's time to contact our specialists (numbers below), who will answer all your questions on this topic.

Tire pressure chart depending on the make and model of the car

Depending on the manufacturer of your car, the recommended air pressure in the tires can vary significantly. At the same time, how do you know how many points you need to pump up? To do this, we turn to our table.

Hyundai

Solaris

A decal in the Solaris door arch warns the motorist that the tire pressure, whether 185/65 R15 or 195/55 R16, should be 2.2 Bar or 32psi.

Kia

Rio

Like the Hyundai Solaris (and they have a lot in common, including the engine), the manufacturer recommends keeping the pressure at 2.2 points, which in the abbreviation psi is equal to 32 units.

Ceed

Things get more serious with the Ceed plate - here Kia recommend pressure depending on the average load of the car. True, the value does not change from workload and is 220 kiloPascal for tires 195/65 R15, 205/55 R16, 215/45 R17 and 420 kiloPascals for diagonal tires in size T125/80 D15

What tire pressure should be in winter

When choosing tire pressure parameters in winter, several factors must be taken into account at once. Primary is the temperature overboard. The fact is that with a decrease in air temperature below zero, the pressure in the tires drops in the range from 0.1 - 0.3 atm. Thus, if the tire is inflated to 2 bar in a warm garage, in severe frost this figure can drop to 1.7 bar.

Such sagging tires, by the way, can be seen on many cars in severe frosts - pay attention! In other words, the passport pressure in the tires indicated in the manual or on the plate on the body are correct for a "cold" tire. Therefore, it makes sense to check the pumping level "on a cold" - in the morning, in frost. In this case, you can set the pressure in accordance with the recommendations of the automaker. And vice versa. Keep the car in the garage in the cold, do not be lazy with a large minus overboard, increase the value by about 0.2-0.3 bar for each wheel.

The second point to consider when inflating tires in cold weather is where and under what conditions you plan to drive. If you plan to move at high speeds along the highway, and even in the company of passengers, then it will not be superfluous to increase the pressure in the tires by the same 0. 2 - 0.3 bar.

However, this value should not be exceeded too much. After all, seriously pumped tires in winter are no less dangerous, since the contact patch with the road surface will decrease, the elasticity of the polymers will decrease, the handling will deteriorate, and rubber wear will increase. And vice versa - you plan to trudge in a snow rut off-road, you should not pump up the wheels. Moreover, under certain circumstances (for example, when driving in deep snow), it makes sense to trim tires by 0.5 bar in order to increase traction and, accordingly, patency.

Also make it a habit to check your tire pressure regularly, at least once a week, in winter. For this reason, special attention should be paid to this issue. The difference in pressure in the wheels on a slippery road can literally go sideways to you.

Deviations from the regulation as early as 0.3-0.5 bar for at least one wheel can cause skidding and problems with the return of the car to the course.


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