Most drivers are already aware that tire tread will eventually wear down after years of use. However, dry rot can degrade the tires prematurely, forcing you to replace them before the tread is too low. Take a look at what causes this problem and how you can keep your tires in good shape. 

Signs of Tire Dry Rot

The rubber used to make a tire contains oils that keep it supple and pliable. However, these resins will evaporate naturally over time, and the tire will show signs of premature aging. 

The most common signs include the rubber turning grayish and becoming brittle. Without the protective resin layer, cracks will form and can lead to leaks and blowouts. Unfortunately, once dry rot sets in, it's impossible to stop the process and the tire must be replaced. 

What Causes Tire Rot?

The sun's UV rays can break down the polymers in the tire and cause the rubber to dry and rot. Natural aging is another factor, but one of the top causes is just lack of use. Resins are released when the tire is in motion, so if your car sits unused for prolonged periods, the oils will not activate and the tire will begin to dry out. The combination of an inactive car sitting in the sun will accelerate this process even further.  

How to Prevent Dry Rot

There are many steps you can take to reduce the risk of dry rot. First, always purchase high-quality tires, which will naturally have a much longer life span. While you can't avoid all sun exposure, try to park your car in a garage or the shade as much as you can. If you keep your vehicle in a garage, avoid abrasive or corrosive chemicals like degreasers and other harsh acids used for cleaning. Also, keep heaters and electric equipment away from your car.

Most importantly, don't let your car sit unused for long periods. With regular driving, the resins in the rubber get moved to the tire's surface, where it is needed to protect against damage. 

If you suspect your tires have dry rot and need replacing, visit Mullanphy Tire & Automotive in Florissant, MO. This full-service auto repair facility has provided three decades of trusted service, reliable repairs, and competitively low prices. Learn more about their services online or speak with them directly by calling (314) 921-4961.