I pulled the seat covers (original) off the seats and washed them in the washer on cold, with Tide and color safe bleach, and fabric softener. They look like brand new (they were covered in coke, coffee, tobacco spit and deer blood) and smell great! I bought the truck like it and had to clean it up.

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2002 Ranger 4x4 bright red
2004 Mazda B3000 DS xcab red
2006 Nissan Sentra black
2009 Kia Spectra black
2005 Chrysler Town & Country blue