I have a problem with my driver's seat. Bottom part of seatback has some "cloth" spots (dark spots from everyday driving, seems like from cloth) that I cannot remove with any leather cleaner. I even tried LIFTER 1 which promised to do the job - only removed 40%. They recammended to use water and toothbrush, and I worked with electrical toothbrush - Braun - still
. A friend of mine has told me to try using warm-hot water, and soap. I do want to try it, but what kind of soap will be safe. I don't want to get dissapointing results, but I still want it to be safe. My leather color is Parchment. Car is 2000 Acura TL. Thanks.

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