Going to have to try some of these products out that you mentioned to see how they work.
Have you ever used
Meguiars #39 Professional Heavy Duty Vinyl Cleaner, clean vinyl, meguiars interior cleaner ?
If I recall I'm just a few years younger than you, but when I was around 16 I used to go to our local paint supply and get M39 (back then I think it was M36, but for some reason haven't been able to confirm this) to clean the vynil floor in my truck. It was the only product that I've ever used, including D103, that could actually get a farm dirty floor clean and like new again.
Since then, I've mentioned Plastic/Vynil Prep on this forum and on the Meguiar's forum and no one has been able to remember this product. I can't recall if the correct number back then was M32 or if it was M36 (I lean towards M36), but the number was changed and so was the name (someone @ Meguiar's told me this a couple years ago, but I don't recall who it was). I know this because I finally took my old bottle in to our paint supply house and he recognized the label and said it had been changed. His comments and my own experience is the only proof I have of this product...but I bought many bottles of Plastic/Vynil Prep over the years. Heck, I can't even find a picture of it online. Wish I'd have kept at least one of those old bottles as proof of what I'm saying.
Plastic/Vynil Prep, as I recall the label, was for cleaning stubbornly dirty plastic and vynil in preparation for using a dye on those substrates. It almost made the surface tacky feeling and needed to have something put on top of it...something similar to M40.
Regardless, M39 cleans just like,
or at least similarly, to the old school Meguair's product I used to buy. Wish they sold it in bulk. To my knowledge M39 is not the same as D101 or D103.
I know I'm not imagining things because I used to use plenty of it, but I can't figure out why no one else recalls Plastic/Vynil Prep.
