I'm so glad to have my old 91 740 working again, I'm actually starting to clean it up and make it look spiffier.
The bumpers were a light oxidized gray. Fella at the auto parts store recommended this "Back2Black" product, which is a white creamy liquid which I've applied, and applied, and applied to the bumper. Seems to need to soak it up, or layer up, or something. Anyway, its now a medium dark gray.
I bought some "Tire Black" for my tires. Clear liquid. One application, my tires look shiny, etc. I tried it on one section of the bumper, and with one spray, that area is shiny and black.
Question is, which product is going to last. If I have to keep reapplying the "Tire Black" every few weeks, as it says to do for the tires, that ain't gonna work.
Any experience with this?