What PSI should my 33 inch tires be?

Try running at 31 PSI for a tankful or 2, you will find the ride will be MUCH smoother. You won't go back. I find running 28-30 PSI is the "sweet spot" for comfort/tire wear.

Do bigger tires need more PSI?

If you have two different sized balloons holding the same amount of air, the smaller balloon would have higher pressure than the larger balloon. Therefore, a larger tire needs less pressure than a smaller tire to carry the same vehicle weight.

Is 40 PSI too much for 33 PSI tires?

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.

Is 35 PSI OK for tires?

Most passenger cars will recommend 32 to 35 psi in the tires when they're cold. The reason you check them cold is that as tires roll along the road, friction between them and the road generates heat, increasing tire pressure.

Is 40 PSI good tire pressure?

Specifically, the level of 40 psi can be suitable for passenger cars or sports cars. But this is too high for small cars with a recommendation below 35 psi, while 40 psi is too low for large trucks. The recommended level for the tires of famous sports cars and passenger cars is between 32 -40 psi.

Determining the correct PSI for new tires and upsized wheels

Is 50 PSI too much for tires?

340 kPa ( 50 PSI)”. This means that the tire will safely carry up to 1477 lbs. and can be safely inflated up to 300 kPa (Kilopascal) or 50 psi (pounds per square inch).

Is 42 PSI too much for tires?

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.

Is 44 PSI too much for tires?

The tire should be inflated to near the limit of the tire. That is, if the limit on the tire is 44 PSI then you should get it up to 42 or 43 PSI. The recommended tire pressure on the driver's door (usually around 30 PSI) should be ignored.

Why do car dealers over inflate tires?

Tires are overinflated during the shipping process, so as to help prevent the flat spot from forming in the tire as it sits for days on in during the shipping process. It is supposed to be part of the delivery check process that the service department deflates the tires to the proper pressure.

What does 44 PSI mean on a tire?

The 44 psi shown on the tire sidewall is the pressure at which the tire will safely support its maximum load rating. This is not the carmaker's recommended operational tire pressure for that specific vehicle.

What happens if PSI is too high?

If tire pressure is too high, then less of the tire touches the ground. As a consequence, your car will bounce around on the road. And when your tires are bouncing instead of firmly planted on the road, traction suffers and so do your stopping distances. You'll also feel a decrease in ride comfort.

Is 80 PSI too high for tires?

The 80 psi is required if the tire is operating at rated load. You most likely have a load range E tire.

How do you determine the correct psi for aftermarket tires?

If there's no sticker on the door, you can usually find the specs in the owner's manual. Most passenger cars will recommend 32 psi to 35 psi in the tires when they're cold.

Does tire size affect air pressure?

Because the weight of your car didn't change just because you changed to a larger tire. A larger tire needs more air volume, but it doesn't need higher pressure. Weight of the vehicle and handling are what determines air pressure, not tire size.

Do aftermarket tires require different psi?

If you have aftermarket tires of same sises and Loadrange , though the brand or model is different , then in general you can use the same advice pressures.

Is it better to over or under inflated tires?

When a tire is under-inflated or over-inflated, it loses stability, negatively affecting handling, cornering, and stopping. Eventually the tire will also start to wear unevenly. Under-inflated tires tend to show wear on the outside edges of the tread, while over-inflated tires show wear down the middle of the tread.

Is it OK to over inflate tires?

Tire Damage and Wear

Overinflating your tires can make them more vulnerable to damage. Like an overfilled balloon, tires filled to their maximum capacity are more stiff and inflexible, which makes them more susceptible to damage from potholes, curbs, or debris.

Is it okay to over inflate tires by 2 PSI?

So, when filling your tires, the recommended tire pressure is the best compromise between handling, comfort, fuel economy and safety. But it's certainly fine to go over the recommended inflation by a psi or two. And going over is always better than going under.

Is 65 PSI too much for tires?

Under Pressure

Some RVers may be inclined to simply inflate such a tire to 65 psi – but unless that tire is carrying its maximum load, all this will result in is a rough ride.

Is 45 PSI too much air?

It is technically "ok", but I would deflate the air to 35 psi. Reason being is it will ride rougher with more air in the tires, and it will wear the tread much faster. It will give you a little bit better gas mileage, but not to the point where it will break you even on tires.

Can a tire be 45 PSI?

A tire's "maximum inflation pressure" may be different than the assigned tire pressure used to rate the tire's "maximum load." For example, while a P-metric sized standard load tire's maximum load is rated at 35 psi, many P-metric sized standard load performance and touring tires are designed to contain up to 44 psi ( ...

How much air should I run in my 35 inch tires?

Well-Known Member. For a 35" you should be in the 28-32 range on road.

What is the recommended tire pressure for 285 70R17?

The quick answer is that I keep my load range D, 285/70R17 Goodyear Wrangler Duratracs at 32 PSI. I've only had them on a couple of months. They seem to perform well and provide a comfortable ride at this pressure.