Took advantage of one of many 95+ degree days and removed the rear windows messed up nineteen-year-old tint.
It looked like the below picture.


Followed this video and used pure simple green as suggested.

Probably because of the age or tint quality, I was not as lucky to get the adhesive to pull with the film.
Using a micro-fiber cloth, simple green removed the adhesive film with repetitive applications until the window was cleaned with sprayway class cleaner.
It was a PIA and because of the heat, I had to pull the car in the garage; however, at least now I can see out the rear window and the result was good.

 

I'll have to do this eventually. Rear tint on my car has a couple of bubbles since I bought it. Tried poking a small pin sized hole in them and using a heat gun hoping it would seal it down flat, but it was no go. Passenger window also needs new tint; it's coming off in the top right corner. New tint all around, and maybe something a little darker.

Is simple green the same thing as Purple Power? I have plenty of that if so.

Just another thing that needs to be done on my car. Add it to the list.

 

^
In my research on doing this, I've heard people say to use ammonia based 409 cleaner or Windex & simple green.
I had a lot of simple green on hand and just used that.
I think I let it bake in the sun to long and that's what caused the tint adhesive to stay.
The guy on the video stated 20 minutes at 120 degrees f.
I left it about 40 minutes and it was pretty dried out. Live & learn.
If I decide to remove the side window tint, which is not defective at the time, I'll give the other two a try to test their effectiveness.
The sides will also be much easier to deal with because of access.
Laying / maneuvering on the rear seat to clean the adhesive, especially down low & around the third bark light, was an exhausting contortion act with the heat of the day.

 

I had a dead wasp that was completely white from being so old stuck all the way in the corner of the rear windshield. Trying to maneuver in the backseat to reach it was seemingly impossible. I think I gave up and just left him there. I can't imagine trying to remove tint, let alone install it. I can do vinyl wrap, but tint seems a little bit more difficult; i'll leave that for a shop to do.

And driver & passenger windows would be a lot more easy if you take the time to actually remove them. I can have a window out in about 30 minutes easy.

 

I've paid to have tint 'professionally' removed in hope to keep the rear defogger operational. Both times the so called tint professionals used a combination of pure ammonia spray and steam. Both times removed the tint, but damaged the grid lines for the defogger. I never fixed the gridlines, but I have backup cams on all the cars, so not a huge deal.

 

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I hear that. Though lucky with no grid line damage the old back and spine paid the price clearing up the adhesive.

Now if I can only survive this potential cat 3 monster at my 6 o'clock!