# Dark stains on car upholstery

**URL:** <https://boards.straightdope.com/t/dark-stains-on-car-upholstery/381874>\
**Category:** Factual Questions\
**Created:** [November 26, 2006, 10:23pm UTC](https://boards.straightdope.com/t/dark-stains-on-car-upholstery/381874 "2006-11-26T22:23:29Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![njcultist](https://avatars.discourse-cdn.com/v4/letter/n/3d9bf3/32.png) [@njcultist](https://boards.straightdope.com/u/njcultist)\
**Post date:** [November 26, 2006, 10:23pm UTC](https://boards.straightdope.com/t/dark-stains-on-car-upholstery/381874/1 "2006-11-26T22:23:29Z")

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I wear lots of black. As much as Johnny Cash.  
My car’s interior is a light beige.

Recently I noticed that my driver’s seat looks like it has been charred. Today I bought some aerosol upholstery cleaner of a chelonian bent touting the fact that it has oxy in it. After a few applications, sweat and elbow grease the dark marks are still on the seat.

Yeah I know I could get seat covers but I’d like to get them almost new. Does anyone have any suggestions about cleaning car interior upholstery?

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**Author:** ![hajario](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/hajario/32/171_2.png) [@hajario](https://boards.straightdope.com/u/hajario)\
**Post date:** [November 26, 2006, 10:40pm UTC](https://boards.straightdope.com/t/dark-stains-on-car-upholstery/381874/2 "2006-11-26T22:40:38Z")

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You might want to consider going to one of those premium car wash places and get them steam cleaned.

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**Author:** ![Lissa](https://avatars.discourse-cdn.com/v4/letter/l/85f322/32.png) [@Lissa](https://boards.straightdope.com/u/Lissa)\
**Post date:** [November 26, 2006, 11:56pm UTC](https://boards.straightdope.com/t/dark-stains-on-car-upholstery/381874/3 "2006-11-26T23:56:42Z")

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Just a thought, but if you know the stains are, uh, _biological_ in nature, an enzyme cleaner might do the trick.

I use Resolve Pet Stain Remover on any spot which is food or bodily-fluid created. Works like a charm.

Worth a try, anyway.

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**Author:** ![njcultist](https://avatars.discourse-cdn.com/v4/letter/n/3d9bf3/32.png) [@njcultist](https://boards.straightdope.com/u/njcultist)\
**Post date:** [November 27, 2006, 1:27am UTC](https://boards.straightdope.com/t/dark-stains-on-car-upholstery/381874/4 "2006-11-27T01:27:14Z")

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No, the stains are not biological in nature.