As you can see our guide about rubber wiper blade, the wiper blade quality is essential for windscreen cleaning. Furthermore, the windshield washer fluid is an important portion, too. Prestoner AS657 is a popular washer fluid for all vehicles. It is better than tap water as the manufacturer claim that it has the properties of cleaning bird dropping, bug, tree sap, road grime, 99.99% effectiveness. It is also make the driver has clear visibility by repel the water beading.
Our research found that most drivers who use this product agreed with its qualities. Clean thoroughly, no beading left on windshield cause they drive with a clear visibility. However, some people feel it not different to other brands both cleanness properties or smell. Many of them refer to its strong smell.