I've used a clay bar too. Makes easy work of getting the marks off.. IMO

 

Vinger and a single-sided razor blade works great!

 

The best way is bonami. Mix bonami/ water into paste then polish window, rinse and no more spots. Takes a little elbo grease. Worked good for me. Frank

 

not sure if everyone knows what Bon Ami is but it is a safer type of Commet. the name being French meaning Good Friend.

"Never Underestimate the Cleaning Power of a 94 Year-Old Chick With a French Name."

 

i dont know if this works or not, but i was told to use windex and newspaper. ive never tried it, but the guy that told me said it sounded funny and didnt believe it, but he tried it and it worked.

 

Bon Ami works good, vinegar/water with newspaper works. A foaming window cleaner always seems to work better than a squirt style.

 

vinegar/distilled water(50/50) and newspaper to wipe and dry, follow with rainX for future ease, always works for me

 

Take it to a detail shop, and ask them to do an " Acid " wash on your window,

Takes off EVERYTHING then do some Rain-X, and they are pretty much invisible after that !!

I heard steel wool works too, my truck was pretty bad, and didn't do any thing to it,

 

0000 Steel wool. Works great and polishes out the fine scratches in the glass.

 

i live on well water and have been using the mr. clean auto carwash that filters the minerals out of the water it does a heck of a good eliminating those water spots