Here's the best tip I can give you...
Others mentioned using two microfiber towels, I'll recommend using more.
Mike's Glass Cleaning Tips
When cleaning glass or anything, you are removing "something" off the glass. On the inside this would be Vinyl Fog and/or Smoker's Film.
Chances are good you're also cleaning someone else's attempt to clean glass and removing their streaks and smears plus whatever chemical they used to try to clean the glass.
Depending on who's riding around in the vehicle you could also be removing
fingerprints and even
footprints from passengers sitting in the front seat and stretching their legs out onto the dash. Kids are notorious for touching the inside of glass with their fingers and hands and that means residues from whatever was in their hands including ketchup and mustard from their McHappy Hamburger, grease from their French Fries or Chicken McNuggets and anything else they're playing with in the back of the car.
So here's my tip on cleaning glass...
Anytime you're
mechanically removing
any type of film, oils or any other substances off the glass,
they are being deposited onto your wiping cloth. Correct?
That means you should no longer use that wiping cloth on any other glass surface because all you'll be doing is transferring the substance you removed to a new section of glass.
The most important thing you can do to avoid streaks and smears when cleaning glass is to use
plenty of clean wiping cloths and after making the initial wipe over a window or a section of a window, either turn or fold to a fresh clean side or switch to a clean, dry, unused wiping cloth to continue.
It doesn't take much to leave a smear on glass so your job is once you remove the majority of whatever was on the glass to start with to get that wiping cloth out of the equation and switch to a new, clean wiping cloth for your final wipe. Then after using the secondary or even third wiping cloth on a single window, set it aside and start on the next window with another clean, dry wiping cloth.
Glass Cleaners
Most glass cleaners work really well, especially if the name on the label has a good reputation to start with.
Glass Towels
Most quality microfiber towels and dedicated glass wiping towels also work really well.
Cross-contamination the true culprit
The culprit is re-introducing whatever it is you removed off the glass back onto the glass.
I like using
Glass Master Pro for
front and back windows for the "Final Wipe" not for the first or even second wipe.
Check it out...
Glass Master Pro Glass Cleaner with Janna
It's really nice having crystal clear, streak-free glass when you're driving your car especially at night or in the early morning when the sun causes glare across the windshield.
Cleaning the outside is pretty easy but cleaning the inside can be a challenge because of the tight angle where the windshield meets the glass. Here's a tool that makes cleaning the inside glass easier without having to
contort your body to get that last little smudge.
The Glass Master Pro
The swivel neck and the triangular shaped microfiber covered head makes removing streaks and smudge easier and faster without having to contort your body into a pretzel to clean those hard to reach areas.
Beautiful, streak-free glass!
Check it out on Autogeek.net
The Glass Master Pro
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