Windscreen smears with screenwash
Tried every windscreen cleaner on the market to clean windscreen on my 2015 s80 of smears. Eventually advised by professional valeter to fit new wiper blades. Fitted pair of Bosch blades and instantly cleared screen. Brilliant.
2 weeks later the smearing was back using ready mixed screen wash
( supermarket). Cleaned screen and wipers with Autoglym Fast Glass and screen clean again. Refilled washers with RAC screen wash and lo & behold screen smears again. I cannot understand why several ready mixed screen wash brands cause this or am I just jinxed.
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