I noticed during the most recent cold spell, when using more concentrated windscreen wash which was good to -10c, my wiper blades 808s which were new beginning of December are now already in need of replacement - juddering and screeching across the glass.

Can that be right? Could the level of alcohol in the windscreen wash affect wiper blade longevity?
The glass has recently been replaced…but can’t imagine it is the new glass causing the problem (it is genuine branded LR glass)

I use undiluted screenwash all year round, have done for years - my wiper blades tend to get changed annually and don't suffer noise or juddering.
Are you sure the wiper arms were put back at the correct angle when the screen was fitted? believe it or not, there is a special tool for aligning the angle of the arms and therefore the blades, I'll see if I can find the details.

ETA - there you go!

Thank you
I will check alignment

Mine were awful when it was cold as the wipers had frozen and wouldn't fold back on the screen, deicer sorted them... Pete

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2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

The rubber will get harder as the temps drop which doesn’t help. Not sure what other additives are in screenwash to help lubricate the blade and reduce judder but I do notice differences in the quality of the screen washing action between brands. 2012 TDV8 Vogue (L322)