^ used it for 9 years now. Love it. The fact that you can spray your whole engine compartment, then leave it and find fantastic results the next day suits me. Been very happy with it.beanie said:I use 303 aerospace protectant on the exterior trim as it’s supposed to have good UV resistance. I’m not sure it’s a trim rejuvenator as such, but it does darken the plastics and should offer some protection against the elements.