A vehicle spins out on a wet road or highway. It crosses the median divide and ends up in oncoming traffic. If the vehicle is an SUV or van, it may even roll.

The driver wasn’t speeding. And the road may have been perfectly straight. So what happened? Just another hydroplaning accident? Driver error? Maybe.

There’s no longer any debate.  Tires older than six years should be discarded and replaced, even if they otherwise appear to be in good condition with plenty of tread.  In fact, they should be tossed out  even if they’ve nDetreaded Tireever been used.  That’s because tires older than six years are prone to "detreading."  Detreading