Black door pillars (?)

I'm also 24/7 in the sun. Interested to see the replies. In the past, I used Armor All. But I still got fading on the black plastic pieces. Thought I might try some Turtle Wax Ice on the black, as I'm doing the rest of the car. It doesn't leave any white residue, maybe it will help.

 

I can't speak for the Toyota pillar long term.

I am using Mequires (sp) interior cleaner on them and they still look new and this product removes the finger prints.
I also use this same product on the black plastic panel at the outside base of the windshield.

303 UV protectant also has a great internet car forum reputation yet I stick w/ Meguires.
Mother's product Back to Black I have never been impressed with.

Good luck finding the perfect product that you like.

 

I wonder if the stuff they paint tyre rubber with would work on plastic parts. Don't suppose it costs very much compared with bespoke products....?

 

It does work but the layers build up and it's difficult to clean off. I find WD40 is excellent for keeping black or grey plastics clean and it repels water so tends to stay clean longer. Good under the hood as well on airboxes etc.

 

I just used the Turtle Wax Ice this morning. I'll see how that holds up over the next few weeks. It was very easy on - and off. It's a very thin liquid wax, so not sure how durable it will be. But it was simple to use and leaves no white residue at all. I did the entire car, including all the black plastic exterior pieces, and even the metal part of the wiper blade arms. Everything got "Iced."

 

I had some Turtle Wax Ice a while back and it is good but doesn't last long, needs to be applied maybe every 3-4 weeks. I had the Turtle Wax Ice detailing fluid as well, great for a quick going over in between washes and makes a good lubricant for clay bar application.