This is a good overall cleaner.
Deep cleaning automotive carpet.
Vinegar dish soap and water.
You may also use carpet shampoos to remove tough stains on your car carpet without discoloring it.
If you want to avoid harsh chemicals try one of these tips from meg roberts president of molly maid to deep clean carpet naturally.
Use your brush to scrub the surface thoroughly ensuring the brush reaches deep inside the carpet fibres.
You can either scrub by hand difficult with lackluster results but cheap by machine easier good results costly or by hot water extractor easiest professional results expensive.
Vacuum the carpet with a wet dry vac or use one of the vacuum cleaners at your local car wash or gas station.
Stir one tablespoon of dish soap into one quart of warm water then add 1 4 teaspoon of white vinegar.
Dip the brush in water to mix the cleaner and deep clean the carpet thoroughly.
Remove as much of the loose dirt and debris as possible.