I was watching the instructional video for this product For the last 2 years on my black car i only used this right after wasing it.
But the video says you can use it after a little layer of dust is on it. Won't this cause swirl marks moing that dust around, which are even more noticable on black cars?
But the video says you can use it after a little layer of dust is on it. Won't this cause swirl marks moing that dust around, which are even more noticable on black cars?
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