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Tips for cleaning the inside of your windshield

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Of all the parts on your truck or motorhome, your windshield is one of the most important to keep clean. Most folks have no problem cleaning the exterior of the windshield. Almost every fuel station has a cleaner, a sponge, and paper towels that will scrub the windshield’s exterior clean. However, the job isn’t done until both sides of the glass sparkle. So here are some tips for cleaning the inside of your windshield.

Why is the inside of a windshield so dirty?

  • Outside dust and dirt. Dirt from the outside air may come in through open windows and/or air vents. The dirt and dust will accumulate to form a film on the inside of the glass.
  • Grime. Fingerprints, splatters, and bug smears can add to the messy glass.
  • Heat and UV rays. Ultraviolet light rays and heat combine to cause some plastics and fabric in the vehicle’s interior to release or off-gas chemicals and particles. These also form a film on the windshield’s interior.
  • Smoke. If you or your passengers smoke cigarettes, cigars, pipes, or vape in your vehicle, the resulting smoke will build up as smudge on the glass.

Getting the best clean

  • Shade. Move your vehicle into the shade, or plan to clean the windshield’s interior glass inside your garage. (Heat can cause the cleaning solution to dry too quickly, causing streaks.)
  • Gather your cleaning materials: Have handy a large bowl or small bucket, dish detergent (I use original Dawn), white vinegar, three microfiber cloths (more about those here).
  • Mix up the cleaning solution: Pour warm water into the bowl. Add two or three drops of dish detergent to the water. Also add a capful of white vinegar. Gently mix.
  • Soak. Put one microfiber cloth into the cleaning mix so the cloth is completely soaked.
  • Dry rub. While one microfiber cloth is soaking, take the second microfiber cloth and rub the windshield’s interior in a circular motion. This will remove any loose dirt and dust. Set this dirty cloth aside.
  • Wring and wash. Wring out the cloth soaking in the cleaning solution and wash the inside glass. First, scrub in a circular motion, changing the cloth frequently so you’re always using a clean part of the cloth. Finish washing the glass by wiping up and down over the entire windshield’s interior.
  • Dry. Finally, take the third microfiber cloth and thoroughly dry the glass. Again, frequently change the part of the cloth that’s touching the glass.
  • Repeat the process, as needed. If your windshield’s interior glass is really grimy, increase the amount of dish detergent and vinegar.

How do you clean the inside of your windshield? Share your tips with us in the comments below, please.

##RVDT1986

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Stephen Snure
29 days ago

I watched an auto detailer on YouTube who recommended the following procedure to remove the foggy film on the inside of the windshield.

1. Mix a 50/50 solution of Isopropyl Alcohol (best to use 90% alcohol) and distilled water in a small sprayer.
2. Cover the dashboard with towels
3. Spray the solution on a portion of the window
4. Use a Mr. Clean Magic Eraser to remove the film.
5. Wipe with a microfiber cloth. (Many detailers use a microfiber towel specifically made for windows. Here’s an example on Amazon: https://amazon.com/Puomue-Microfiber-Cleaning-Windshields-Stainless/dp/B08Y57DMLF/

If the window is not too dirty I just use the solution with a microfiber towel. If it’s really bad I use the Magic Eraser first.

Joe
1 month ago

I decided to try one of those gimmicky windshield cleaners as cleaning the inside of a windshield is one of the things I hate the most, be it car, RV, or otherwise. I decided to give the Windshield WOW a try. It’s 2 paddle things with microfiber cloths that you attach to each side, and it has magnets strong enough to hold the paddles together with the glass in between. So basically as you clean the exterior glass, you’re cleaning the interior glass at the same time. There is a wand attachment though for RV you need a longer wand, but I can say over all, I like the results and cleaning both inside and outside at the same time is a time saver.

Norm B
1 month ago

After cleaning my windshield inside and out, all inside mirrors and reflective shiny surfaces, I apply Turtle Wax Ceramic car polish (two coats) and then future washing/cleanings are incredibly easier.

Mike
1 month ago

Here’s a tip; when cleaning your windows/ windshield, use up and down motion on the inside glass and side to side on the outside glass. That way if and when it streaks you’ll know which side of the glass it’s on !!!

Jim
1 month ago
Reply to  Mike

Now THIS is a good tip!

Charlie Sullivan
1 month ago
Reply to  Jim

Here’s another good tip for you…use coffee filters to wipe you windows. They do not leave lint or residue on the glass. I use them on the inside as well as the outside. Use the cleaner of your choice, then use the coffee filters to wipe clean.

Lawrence Neely
1 month ago

dirty windows on the inside, you forgot nose art from the dogs

Jim ransdell
1 month ago

Clean glass, I never let my inside glass get very dirty so I use distilled water on a cool surface. I do use microfiber to dry however, they leave fibers behind. I then use the blue work paper towels and gently take the fibers off.

Matt Colie
1 month ago

I was selling a car so I took it to a detail shop. When I got back one of them was doing the windshield. He was using Steel Wool! Steel can’t scratch glass and it did an amazing job. The windshield looked so good that I (momentarily) considered keeping the car. Steel wool (4×0) is what I use on the coaches glass still.

Drew
1 month ago

We got a couple of those windshield cleaner wands (1 for rv; 1 for car). https://www.amazon.com/Windshield-Unbreakable-Extendable-Long-Reach-Triangular/dp/B07L3H5DDW/ref=asc_df_B07L3H5DDW/?tag=hyprod-20&linkCode=df0&hvadid=312280085431&hvpos=&hvnetw=g&hvrand=9832838106531169357&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9031999&hvtargid=pla-724641510437&th=1

I only use water and it leaves no streaks. As others have said- reaching the surface is the hardest part without something to help you.

DW/ND
1 month ago
Reply to  Drew

Drew: I have a similar tool – however no telescoping handle. This looks like a lot better one for reaching big class A windshield corners – without having to crawl on the dash! Thanks for the link – I am going to get one of these. I use a very small spray bottle of alcohol to spray on the pad. Works good, except for the reach.

bill
1 month ago

Thanks Gail .. Good tips .. Next tip would be how a 70+ guy can become a contortionist or learn parkour to finish the job👴😖

Snoopy
1 month ago

Trouble is to clean our class A windshield, you have to be an Orangutan monkey with 4′ arms to do it!!
Snoopy

Spike
1 month ago

I thought the article was going to have some tips on how to better reach the windshield and get into the corners, etc. Large windows on motorhomes can be quite difficult to get to. Even the area toward the bottom of pickup truck windshields can be tough due to the angle between glass and dash.

Good old Windex and paper towels work for me for materials. The problem is getting to all areas of a large windshield without climbing around on the dash!

Gary
1 month ago
Reply to  Spike

Don’t use Windex. It has ammonia in it and that is not good for vinyl dash tops (overspray).
Stoner Invisible Glass or the Sprayway glass cleaner are great.

Jim Johnson
1 month ago

Alternative for cleaning the inside of a windshield – Mr. Clean Magic Erasers. The very gentle abrasive inside the sponges will strip the vinyl out-gasing layer that creates most of the dull cloudiness of your windshield. After using a damp Magic Eraser sponge as directed, repeat the cleaning as you normally do. Hint: At the same time, use the original Rain-X treatment on the exterior of the windshield for a fantastic factory fresh view.

jim
1 month ago

We have made rubber stamps for over 27 years. It is done by exposing a chemical liquid between 2 pieces of glass.. a speck of dust will show up on the dieplate, ruining it..We discovered that 70% rubbing alcohol and a microfibre cloth does an amazing job with very little elbow grease.. we keep a small spray bottle and a cloth in the car.. neat, small, and does the job very well.. NOTE.. 70% does the best job.. not 50% or 90%…

Bill Tate
1 month ago

Invisible Glass cleaner and a cleaning tool for windshield 5 minutes and done.

Jeff Arthur
1 month ago
Reply to  Bill Tate

Yep , invisible glass ,by Stoner