Look in your car’s owner’s manual, measure the blade, or ask at an auto-parts store for the proper fit. Windshield wiper blades come in many sizes, even on the same car. Even though it may not get as much use as the front wipers, it is exposed to the elements and can fail over time. If one is worn out, its mate can’t be far behind.ĭon’t forget to check the rear wiper, if your vehicle has one. When the time comes for new blades, remember to replace them in pairs. Further, be sure to clear snow and ice from the windshield in the winter before dragging the wipers across the uneven surface. You might be rewarded with a couple more months of a clear windshield without spending money on replacements. Simply put windshield washer fluid or glass cleaner on a damp sponge or rag and wipe debris off the rubber and the windshield where the wiper rests. If the wipers are in decent physical condition but not clearing the windshield effectively, clean them. If the rubber is rigid or chipped, or produces nonstop streaking, you need new wipers. Lift each wiper arm off the glass and run your finger along its rubber edge. To get the most from your existing wipers, inspect them periodically. The good news is that, based on our testing, you don’t have to spend a lot of money to get good performing windshield wipers, but you might need to replace them every six months or so.