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When shopping for a used RV, most buyers focus on the obvious things. They look at the roof, inspect the interior, check appliances, and examine the overall condition of the unit.
What many people overlook is one of the most important safety items on the entire RV.
The tires.
According to Todd in this episode of Todd’s Two Minute Tech Tip Tuesday, one of the most dangerous things on a used RV may not be visible at all. The tires can appear to be in excellent condition while still presenting a serious safety concern.
RV Tires Often Age Out Before They Wear Out
Unlike passenger vehicles that may accumulate thousands of miles every year, many RVs spend much of their time parked in storage or sitting at campsites.
As a result, the tread on RV tires may still look good long after the tires have reached the end of their recommended service life.
This creates a false sense of security for many RV owners.
A tire with plenty of tread can still be unsafe if it has aged beyond the manufacturer’s recommended lifespan.
That is why Todd emphasizes that RV owners should not evaluate tire condition based solely on tread depth.
Instead, owners need to determine the actual age of the tire.
Understanding the DOT Code
Every RV tire includes a Department of Transportation identification code commonly referred to as the DOT code.
This code provides valuable information about when the tire was manufactured.
Todd explains that RV owners should look for an oblong circle containing four numbers.
The first two digits represent the week of the year that the tire was manufactured.
The last two digits represent the year.
This simple four digit code tells you exactly when the tire was produced and allows you to determine whether the tire is approaching the end of its recommended service life.
Why Tire Age Matters
Rubber naturally degrades over time.
Even when an RV is not being driven regularly, exposure to sunlight, temperature changes, weather conditions, and normal aging can affect tire performance.
Because of this natural aging process, many tire manufacturers recommend replacing tires after approximately five to six years.
Todd points out that most RV tires age out before they wear out.
This means an RV owner could be driving on tires that appear perfectly fine while unknowingly increasing the risk of tire failure.
Checking the DOT code helps eliminate that uncertainty.
Where to Find the DOT Code
One challenge for RV owners is locating the code itself.
Todd explains that the DOT code is typically found on the inside sidewall of the tire.
RV owners may need to get underneath the RV or carefully inspect the inside portion of the tire to locate the marking.
Once found, identifying the four digit manufacturing code is straightforward.
The information can then be used to determine the age of the tire and whether replacement should be considered.
A Simple Inspection That Improves Safety
One of the best things about checking tire date codes is how little time it takes.
In just a few minutes, RV owners can gather information that may help them make informed decisions about maintenance and safety.
Whether you recently purchased a used RV or have owned your RV for years, checking tire age should become part of your regular inspection routine.
Todd’s recommendation is simple.
Find the DOT code.
Read the four digits.
Determine the tire’s age.
If the tires are older than five to six years, strongly consider replacement.
Safety Starts With Awareness
Many RV owners focus on what they can easily see.
However, some of the most important safety concerns are hidden in plain sight.
A tire that looks perfectly acceptable may actually be well beyond its recommended service life.
Taking a few moments to inspect the DOT date code can help you better understand the condition of your RV and make safer decisions before your next trip.
As Todd says, it is all about safety.
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