12-04-2019, 01:11 PM | #3 |
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looks like just tar or oil on the road.
People always recommend clay-bar, I'd say try WD-40 on the old micro-fiber first. Clay-bar is OK if you plan to polish your car afterwards, else you risk marring/scuffing even scratch the paint. GL |
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12-04-2019, 05:27 PM | #4 | |
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Honestly, I struggle with WD-40 when a dedicated yet cost effective car product was developed for tar on paint. Not saying it won't work, just saying that a high end detailer would not likely use WD-40 first, second or third in the process of detailing your above referenced car. _____ OP, there are many quality Iron-X and Tar-x spray that are super effective, and relatively cheap. (assuming the substance on your paint is tar like) That said, i'd recommend a foaming bath to remove the first layer of whatever will come off, followed by Gyeon Tar-x followed with another foam bath. Ultimately, you want to minimize touching the car's paint, especially with old microfiber towels. After my last track weekend at Road Atlanta, i had a ton of rubber goo all over my car (chunks and goo like splatters). When i sprayed Tar-x it nearly fell off without much of any agitation. Last edited by blazinpond; 12-04-2019 at 05:36 PM.. |
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12-04-2019, 05:40 PM | #5 | ||
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12-06-2019, 12:43 PM | #8 |
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12-07-2019, 12:33 AM | #9 | |
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Large low pressure area there as you go down the road at speed. Most likely exhaust condensation or moisture from the drive mixed with different particulates. Just a guess but the same dark colored stuff has been showing on my X5M lately.
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12-09-2019, 12:37 PM | #10 |
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12-09-2019, 01:36 PM | #11 |
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I used to get this type of buildup on my old Seat Leon TDi due to the diesel emissions. Never seen it with a petrol engine though. Could be a sign of poor quality fuel or exhaust issue perhaps? If it’s definitely coming from your car, which the location of it indicates, I would have the exhaust checked out as it shouldn’t be putting that out.
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