Polk’s Top 7 Reasons for Using a Tire Pressure Monitoring System

I think most RV owners have heard stories about an RV that had a tire blowout at one time or another. Some of these tire blowout stories are worse than others, and hopefully if you ever experience a tire blowout it will result in little damage and no one will be hurt.


There is more educational material available now on RV tire care and maintenance than ever before. We are instructed to check and inflate our tires to the correct pressure for the load, not to overload the RV, to inspect our tires for signs of damage and/or excessive wear and to replace tires that show any evidence of damage and at regular intervals.

This is all great advice that should be adhered to, but it is impossible to know what kind of damage may have already occurred to the inside of a tire, and you have no way of knowing when the tire might fail. Another consideration is what might be happening to the tires on your tow or towed vehicle as you travel around the country. Several years ago I had a tire blowout on our towed vehicle and barely noticed it until the entire inner fender was destroyed before I could safely pull over and stop.

This brings me to the topic of today’s article, a Tire Pressure Monitoring System (TPMS). For many years I traveled in RVs without a TPMS. Looking back now I honestly can’t tell you why I didn’t get and use a TPMS sooner. During the time I didn’t use a TPMS I had one rear tire blowout and was fortunate to be traveling at a lower speed when it happened. Even at a lower speed it caused some damage to our motorhome. It wasn’t until we were planning a long RV trip that I decided it was time to look into a TPMS.

I would like to give you my top 7 reasons for using a TPMS on your RV and tow or towed vehicle tires:

1)Most Tire Pressure Monitoring Systems I researched were easy to install and easy to use.

2)It’s a quick and easy way to check the tire pressure in every tire before traveling each day. The TPMS I use is accurate to within 2.7%. That’s as accurate as many tire gauges.

3)You can monitor both the RV and the towed vehicle tires as you travel. That’s what I call piece of mind!

4)A TPMS has an alarm/warning system to notify you of a potential problem. Knowing when there is a potential problem with a tire can limit damage to the RV and quite possibly save lives.

5)My TPMS monitors tires for a loss in air pressure and for possible overheating too.

6)A TPMS can be cost effective. The cost of a decent TPMS can be equivalent to the price of a new motorhome tire, not to mention the damage a blowout can cause to the RV and/or the towed vehicle.

7)I don’t think I was ever as relaxed traveling in the RV as I am now with the TPMS onboard. Driving is much more enjoyable when you know what the tire pressure is at any given time, and the fact that you will be warned if a problem with the tires exists.

As I researched the topic I discovered many reputable companies offering a TPMS that will work on larger motorhome tires. Based on my particular needs and on what I wanted in a TPMS I decided on the Tire Minder, Model TMG 400C by Minder Research

Happy RV Learning,

Mark Polk
RV Education 101
RV University
RV Orientation
Go for the RV Gold
Follow us on FACEBOOK

RV Consumer

RV Tire Age can result in Tire Failure

Tire failure on RV’s can be extremely dangerous and can cause extensive damage to your RV. There are lots of reasons for tire failure on RV’s, like under inflation, over inflation, overloading and the age of the tires. Today I want to discuss how the age of your RV tires, and exposure to the elements, can lead to tire failure.

Tires are designed and built to be used. The rubber used in tires ages faster when they are not used, so more use results in longer tire life. The problem is lots of RV’s don’t get used that much.

When tires are manufactured compounds are added to help protect the rubber from weather cracking and ozone damage. The problem is the tire needs to be rolling down the road, heating up and flexing for these compounds to work their way to the surface of the tire and protect the rubber from damage. So, when tires sit still, like in storage they start to dry out causing them to age faster.

Weather cracking or checking occurs on all tires when they are exposed to heat and sunlight. This is especially true of the tires sidewall. Ozone in the air and UV rays from the sun shorten the life of your tires. It’s not uncommon to see RV tires with low mileage and plenty of tread that are ruined by the damaging effects of ozone and UV rays. Ozone in the air causes tires to dry rot and deteriorate. UV rays from the sun , and not using the RV make it happen quicker.

You need to inspect your tires for weather checking or cracks in the sidewalls before each trip. Cracks less than 1/32 of an inch deep are ok, but if the cracks are more than 2/32 of an inch deep the tire should be replaced immediately. If you notice damage to the tires and you’re not sure what to do have them inspected by a professional.

This faster aging and weather cracking are why tire manufacturers recommend replacing the tires on RV’s when they are 5 to 6 years old, especially if the RV isn’t used that much.

So how can you tell how old the tires are? All tires manufactured in the United States have a DOT number. The DOT number may be on the inside or outside sidewall. At the end of the DOT number the last three or four digits in identify how old the tire is. Older tires used three digits. The first two identify the week of the year the tire was built and the third identifies the year. Newer tires use four digits. For example 3208 is the 32nd week of the year and 08 is the year 2008. If you question the age of your tires, especially on a used RV, and you can’t find the DOT number have them inspected by a qualified tire center.

Even though there are many other factors that can affect the life of your RV tires you can see that the age of the tires is one of the most important consideration.

Watch a 20/20 report on how the age of tires can result in dangerous tires http://www.youtube.com/watch?v=mDgSk5xWkrI

Now that we know how age and the elements can affect the life of your RV tires what can we do to help extend the life of tires when they’re not being used?

Considering where and how your RV is being stored can add life to your tires. Of course a covered, dry garage is the best scenario, but we know this isn’t always possible.

The first step is to clean the tires. Clean the tires with a mild soap and water. Avoid using tire dressings. Sidewall rubber contains antioxidants and anti-ozones that are designed to work their way to the surface of the rubber to help protect it. Washing tires excessively removes these protective compounds and can age tires prematurely. The same is true of most tire dressing designed to make your tires shine.

Inflate the tires to the recommended inflation pressure on the tire sidewall when in storage.

Avoid storing tires on petroleum based products like asphalt and other heat absorbing surfaces, and avoid storing tires on frozen ground.

If stored outside you should place some type of barrier between the tire and the ground surface. Make sure the blocking is wider than the tires tread and longer than the tires footprint. If tires are not blocked properly and the load distributed evenly the tire sidewalls can be damaged.

Avoid any exposure to heat and sunlight. If the RV is stored outside cover the tires with covers that block out the sun.

The RV should be stored with the least amount of weight on the tires as possible. That means it should be unloaded prior to storage.

You should move the RV every few months help prevent sidewall cracking from the tire sitting in one position for too long.

Following these simple tire storage tips can add life to your RV tires, but keep in mind that tire age and exposure to the elements are leading causes for tire failure. Make sure you know the age of your RV and automobile tires and always inspect your tires for signs of weather cracking before each trip.

For more information on maintaining your RV check out our RV Care & Maintenance DVD

Happy Camping,

Mark Polk

RV Education 101

RV University

RV Tire Tips for Safer RV Trips

It seems as though I talk about tire safety all of the time. The reason I do is because tires are an important safety topic concerning RVers that are often times overlooked.

Just recently I read a newspaper article that summed up just how overlooked tires, in general, are. The article stated, “The Rubber Manufacturers Association found that 29 million drivers believe that tires require no regular maintenance.” This number might be considered small when compared to our current deficit, but it is quite large when you consider 29 million people are driving around the country on tires they don’t know the condition of.

With peak travel season quickly approaching I thought it would be a good time to offer some tire tips for safer trips. These tire tips apply to your automobile as well.

Watch the RV Tire Tips Video

Two of the biggest problems with RVs today are overloading the RV and under inflated tires. With multiple slide-out rooms, large holding tank capacities and the ample amount of storage space available on today’s RVs it’s easy to see why so many are overloaded. We have a natural tendency to fill every nook and cranny of available storage space on our RVs.

Another problem is out of balance loads. You can be within an axle or tire’s load capacity on one end of an axle, and be over capacity on the other axle end. This is a common problem with RVs and many times the cause is poor weight distribution and/or improper loading of the RV. When this happens the tire or tires on the end of the axle that is overloaded are subject to tire failure. The bottom line is overloaded RVs and under inflated tires can be extremely dangerous. The only way to make sure that your RV is not overloaded is to have it weighed.

Weight ratings for RV’s are established by the manufacturer and are based on the weakest link in the chain. When you exceed a weight rating you are overloading one or more components on the RV and risk wearing the component out prematurely or complete failure of the component. In many cases the tires on your RV are the weakest link. Just like the axles on your RV, your tires have load ratings too. The maximum ratings are molded into the side of the tires. Keep in mind these are maximum ratings. The sidewall of the tire shows the maximum load and the inflation pressure for that load. Never set the inflation pressures below the recommendations you find on the vehicle manufacturers placard and do not exceed the maximum inflation pressure ratings found on the tires sidewall.

The tires on your RV are the most vulnerable component affected by overloading the RV. There are numerous reasons for this. First and foremost is when the tires are not inflated properly for the load. Failure to maintain correct tire pressure can result in fast tread wear, uneven wear, poor handling, and excessive heat buildup, which can lead to tire failure.

The only way to correctly measure the inflation pressure in your tires is with a quality inflation pressure gauge. Using your boot, a billie club or a hammer is not accurate, and never depend on your eyes to check tire inflation. There can be as much as 20 PSI difference between tires that look the same to your eye. You need to invest in an accurate inflation pressure gauge. You should get one with a double, angled foot. This makes it much easier to check the outer tire of a dual set.

Check all of your tires on a regular basis and adjust the pressure according to the manufacturer’s recommendation. Never check inflation pressure when the tires are hot. You’ll get a higher-pressure reading and if you let some air out they will be under inflated when they are cold. If you have dual wheels you’ll want to add extension hoses to the valve stems to make the job of checking tire inflation easier. It can be nearly impossible to check the inner dual without extension hoses. The best extension hoses will have stainless steel reinforcement and external braiding for long trouble-free life.

Ozone in the air and UV rays from the sun shorten the life of your tires. It’s not uncommon to see RV tires with low mileage and plenty of tread that are ruined by the damaging effects of ozone and UV rays. Ozone in the air causes tires to dry rot and deteriorate. UV rays from the sun make it happen quicker. This is especially true of the tires sidewall. Inspect your tires for checking or cracks in the sidewalls. If you notice any damage to the tires have them inspected by a professional.

Keep the tires covered with covers that will block out the sunlight when you’re not using your RV. You should also place something like a piece of wood between the ground and the tires. Be sure that whatever you use is larger than the footprint of the tire. No portion of the tire should hang over the edge of the tire block. This can cause internal damage to the tire.

Occasionally washing your tires with soap and water is OK using a soft brush. Sidewall rubber contains antioxidants and anti-ozones that are designed to work their way to the surface of the rubber to protect it. Washing tires or scrubbing excessively removes these protective compounds and can age tires prematurely. The same is true of most tire dressings. Products that contain petroleum, alcohol or silicone are bad for tires.

Tire failure can be extremely dangerous and can cause extensive damage to your RV. There are no
guarantees, but by practicing good tire maintenance you can feel much safer and secure that the weakest link on your RV will do its job while you’re out exploring this wonderful country we live in.

If you would like to learn more about maitaining your RV check out our RV Care & Maintenance DVD

Happy RV Learning,

Mark Polk
RV Education 101
RV University
RV Consumer