I have been washing our vehicles for over 55 years and I have yet found a product that cleans the glass. I generally use the standard Windex and paper towels and in the shade the glass looks good but ...
The use of newspaper was due to the alcohol based inks they used. Now most have switched to water based inks which is why some CAN transfer the ink color.
If you know how to tell the difference between a sheet fed or web printed newspaper you can still find ones that use the alcohol based inks.