Buy a new or used car from a dealer and the inside of the windscreen is crystal clear.

Clean the screen yourself and get streaks and smears.

I have tried:

Newspaper
Vinegar
Iso-Propul alcolhol
Nail varnish remover
Windolene
Nilfisk
Mr. Sheen
and a wheel-barrow full of other stuff all with the same bad result.

So, guys, what's yor secret...?

Regards
Andy - Newport, UK

 

Griot's Garage has the best window cleaner I've used. It gets the windows squeaky clean. It comes in liquid form, but I use the wipes, so you don't get any overspray on the dash, etc.:
http://www.griotsgarage.com/catalog.jsp?&SKU=H11192

And their lint free towels also work great:
http://www.griotsgarage.com/catalog.jsp?SKUupsell=14910

For the most part, their products aren't cheap, but it's a great place for specialty car care products like these.

 

Stoner glass cleaner works wonders. Totally streak free!!! Remember to use a good terry cloth

 

Meguiars NXT glass cleaner & Stoner's Invisible glass are good. Aerosol regulations prohibit shipping for Stoner's to the UK though, unless you can get it locally.

 

Stoner Invisible Glass for the inside.

RejeX for the outside glass.

 

i used windex or lens cleaner from some optical shops. also bought a large size cleaning cloth from them. used a glass wizard for hard to reach areas.

 

The best is Autoglym windscreen cleaner takes off flies, insects etc and leaves no smears, excellant product.

 

I have tried many different cleaning prducts but the biggest break through came when I recently found some microfibre cloths designed specifically for glass. They have a much tighter weave and they work incredibly well.

 

Mr Muscle glass cleaner and some good quality paper towel, streak free results.

 

Once again Stream hits the nail on the head!! The only thing I can add is I recently added Griot's Garage microfiber windsheild towels to "buff" galss after cleaning wipes and lint free towels. Really get them clean and s-t-r-e-a-k free.