Windshield wipers degrade over time. They chatter, they tear and, as a result, leave a streaky wipe behind. The trick is changing your wipers as soon as they don’t clear the windshield well. As they age, wiper blades will leave behind streaks, indicating that it is time to change them. Rain, snow, and other precipitation can severely cut down on your ability to see the road and other vehicles clearly so changing your wipers when they wear out is very important. Take the wiper blade challenge to determine whether it’s time to replace your windshield wipers.