Story Published: Nov 24, 2008 at 5:59 PM PST
Consumer Reports tested 15 windshield wipers, evaluating how well they remove water after three months, six months, and nine months. Included in the tests—a newer type called a beam blade. They come as a whole blade you install, with no metal or plastic frames or any joints like conventional wipers.
Testers built a machine to simulate rain. It delivered a sequence of rain patterns from a heavy downpour to a light mist. Testers also sized up how much water was left behind, and whether there were lines, smudges, streaks, or squeaks.
The good news … tests showed that when new, those blades performed at least very good, if not excellent. But tests showed wipers deteriorate in just a few months. After three months, most of the wipers didn't clean as well. And after six months, only one scored better than good.
Testers also looked at how easy the blades are to install and remove. Most vehicles have a hook-type mounting arm, which is the easiest for removing and installing wiper blades. To remove the old wiper blade, simply release the tab and slide it off. To install the new wiper, simply do the reverse. Slide it on until it clicks.
In the end, Consumer Reports top-rated the Valeo 600 series. Depending on the size you need, they cost anywhere from $9 to $15.
Consumer Reports says wipers wear so gradually that people often miss the fact they've deteriorated. Ideally, you want to change your blades every 6 to 12 months. And check for the size you'll need before going to the store. You can find that information in the owner's manual.
