Mine was over a year old when it broke. I was using distilled from Smith's up to that time. Another user had his do the same. He recommended vapor distilled.
My Cpap had problems with distilled water due to deposits and had to go in for repairs. Found out this is fairly common.
I use vapor distilled such as Smart Water now.
I have used VLR without issue many times on interior plastic. Besides vinyl is plastic. I don't have that disclaimer on my bottle but it is several years old.
In the 70's this was known for removing heavy oxidation on neglected red cars, in particular.(probably because red oxidized the most)That may be a change in the formula because I don't believe the can use to say not for excessive oxidation but clear coat was not being used either.
I am deaf in one ear and can’t hear out of the other. Seriously, I bought a pair of Oticon ones in 2008 for 7000 which lasted a week after the warranty was up. Very good for sound and differing tones. I currently have Advanced Affordable Hearing rechargeable “Here Clear” aids which are/were...