I just used the 303 vinyl cleaner concentrate on my 200 to remove some black spots, I think it was grease from manufacturing, and it worked well. I got the seats damp first, then wiped/gently scrubbed with paper towel and the end of the t-shirt I was wearing. The t-shirt did better than the paper towel on one bad spot. I then wiped the seats with a wet paper towel, dried, and followed by 303 protectant. That was the first time I used their cleaner. I had been using the 3M cleaner/conditioner followed by 303 protectant.
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