I have some Porsche floor mats that say "Porsche" in the middle of the mat in red. Over time, the lettering has got really dirty. What's the best way to get these clean? I have a check carpet extractor. What type of product should I use?
Put them on the ground. Spray folex on them. Pressure wash @ 1500 psi until all the dirt and foam is washed out. Hang against a wall for 4 hours. Done.
If your thinking the embroidery will be damaged, don't worry...you're safe @ 1500 psi.
Do you have a garden hose? Get a high pressure nozzel. Not near as good as a PW but much more effect than just scrubbing them by hand. Nylon brush and folex add in some elbow grease and rinse well with the nozzel and you should be set. If nothing else is available take the matts to a coin op and use their pressure washers and rinse them out nicely.