Driving without resilient and long-lasting wiper blades is detrimental to your windshield. There are many tell-tale signs that your faulty blades must be replaced immediately. Hardened or broken rubber causes streaks as the blades scrape against the windshield. If you see a flimsy mist after wiping, there might be rubbish or oil embedded on the rubber.

Make sure you inspect your blades and look for gashes, scruffy edges, or blemishes on the rubber. Don't forget to check your rear wipers. You should also observe your blades' wipe pattern. If you see a series of streaks, that indicates the rubber has bent too far. A defective blade also creates screeching, whacking or throbbing sounds when in use.