But you shouldn't go too much over recommended PSI. You can safely over-inflate tires by up to 10%. For example, if your tires have a recommended PSI of 35, you can go up to around 38 PSI without worry. Anything more than that is too much and not recommended.
No, for most cars a tire pressure of 40 psi is too high. You might find 40 psi suitable for some vehicles, especially if they're carrying heavier loads or if the manufacturer's recommendation is close to that figure. However, it's generally too high for most passenger cars, which usually recommend between 30-35 psi.
Higher pressure generally is not dangerous, as long as you stay well below the “maximum inflation pressure.” That number is listed on each sidewall, and is much higher than your “recommended tire pressure” of 33 psi, Gary. So, in your case, I'd recommend that you put 35 or 36 psi in the tires and just leave it there.
While you should always stay within this range, you should also never be below 20 PSI, or over 50 PSI, or you risk serious tire damage (more so than with standard overinflated or underinflated tires to a lesser degree). Your car may have different ideal tire pressures for the front and rear axles.
Seriously though, you'd have to go to 200 PSI to get it to explode. So, if your tire looks low or the dashboard says there is a problem with your tire, you put the maximum PSI into it? No.
You can blow out ordinary every day cheap riding lawn mower or wheel barrow tires with as little as thirty to forty pounds of pressure, sometimes even less. Most car tires will blow out, explosively, at less than a hundred pounds. Big truck tires will usually blow out at less than two hundred two three hundred pounds.
Ideal Tire Pressure
Tire pressure between 32 to 35 PSI is suitable for most vehicles. However, one can go as low as 20 PSI (although that is not recommended). Anything below 20 PSI is considered a flat tire.
Pressures below 20 PSI are considered “flat” and dangerous to drive on. Usually, low pressures indicate a puncture but can also occur over long periods naturally as air escapes.
When the tyre pressure is too high, the tyre is less flexible, resulting in a smaller contact patch with the road. This can lead to increased rolling resistance, which means the engine has to work harder to move the vehicle, leading to higher fuel consumption.
In most of these cases, 40 psi should be more than enough, and since most modern tire designs will allow up to 44 psi (in some cases more) this is not a problem. If you have a heavily loaded vehicle, up to 44 or even higher is ok if the tire allows it, but this is a little high for most vehicles.
Monitor for wear and damage: Regular tire inspections can help you spot the signs of overinflation early. Look for uneven wear, particularly along the center tread. If you notice this, it might mean your tires are overinflated.
Yes, it is recommended for all four tires to run at the same psi levels. However, there are exceptions.
Much like an overinflated balloon, tires with too much pressure can pop. While overinflated tires are more likely to create flats, they can cause complete blowouts if put under enough stress. This is especially true when combined with other factors—like excessive heat and aged rubber.
If the pressure is more than 4 PSI above the cold pressure, you should add more air. That is because there is too much friction, which builds up more heat than desirable. Conversely, if they are less than 4 PSI above the cold pressure, the cold pressure is too high and you should release air.
But you shouldn't go too much over recommended PSI. You can safely over-inflate tires by up to 10%. For example, if your tires have a recommended PSI of 35, you can go up to around 38 PSI without worry. Anything more than that is too much and not recommended.
Running your tires at the correct pressure is important because it keeps you safe, cuts down your gas bill, and makes your tires last longer. Each vehicle has its own specifications for tire pressure, but most fall between 28 and 36 PSI (pounds per square inch).
To reduce high pressure in a home, you'll need a Pressure Reducing Valve ( PRV ). In fact, these are often required by code for pressures beyond 80 psi . These devices do exactly what they say, reducing pressures of up to 400 psi down to a reasonable level of your choosing (most are factory set at 45 psi).
High pressure means being compressed to more than 150 pounds PSI. The standard compressor found in commercial garages can compress up to that pressure. Although high pressure starts at 150 PSI, most industrial solutions supply pressures ranging from 1000 to 6000 PSI.
If there's no sticker, you can usually find the info in the owner's manual. Normal tire pressure is usually between 32~40 psi(pounds per square inch) when they are cold. So make sure you check your tire pressure after a long stay and usually, you can do it in the early morning.
Much of this will come down to the individual car, but generally, the lowest tire pressure you can drive on is usually 20 psi. Only use that lowest bar for emergencies—you should not regularly drive on tires with 20 psi unless necessary. Anything below 20 psi, and you're driving on a flat tire.
This is because they experience less wear and tear. Under-inflated tires rub against the road more, which causes them to wear down faster. Over-inflated tires also experience increased wear, as they bounce off the road rather than rolling. This causes the tread to wear down unevenly, which can lead to a blowout.
Remove the valve cap from the stem on the tire to expose the metal pin. If you have an air pressure tool, the back is equipped with a small piece specifically designed for releasing air pressure. Press down firmly on the pin of the valve using this tool, or another similar item, to release air.
There is a tire pressure marking on the sidewall of your tires, but this isn't the optimum air pressure for your tires, it's the maximum. The words 'Max. Press. 35 PSI,' for example, indicates the maximum pounds per square inch pressure needed for your tire to support the weight of its maximum load-carrying capacity.
Possible Issues, Recommended Tire Pressure. It's not recommended to drive on 20 psi tire pressure, unless in an emergency, as it could accelerate air loss in the tire. The recommended tire pressure is somewhere between 32 and 36 psi, but it could vary per vehicle.