Goof off is a good start.
How to get dried deck stain off of vinyl siding.
Clear pvc cleaner removes deck stains on vinyl siding and another website stated to use mineral spirit.
Step 4 rinse the cleaner off using a hose or pressure washer to remove all residue.
Wear a face mask and rubber gloves to protect yourself from the fumes.
Oxygen bleach may remove both oil and water based stain.
Put a small amount of paint thinner or deck stain remover on a sponge or rag and wipe the stain off in the direction of the grain imprinted on the vinyl siding.
The stripper by behr or other stain stripper that is safe for vinyl siding.
To remove the stain you must strip the color off of the siding.
It appears the stains on your siding are more of a permanent nature as they re set in over a period of time and not removed immediatley.
Brush the stain gently with a wet soft bristled brush using a circular motion and adding water if the area is too dry for the brush to move smoothly.
Clean magic eraser to remove the deck stain.
Moisten the area with water and then scrub it using the cleaning solution.
Try several different cleaners to find which one works best on the particular stain for your siding.
Steps to remove the stain.
Second good choice is to replace the stained siding third is to try some paint remover but that may change the texture finish onthe vinyl by attacking iot also.
Stripper is available at home depot or other hardware stores that sell behr products.
The oil based stains will be gone from your vinyl siding.
Dip the scrub brush into the bucket of bleach solution and scrub the stained areas gently.
Sponge or old cloths.
Follow the guidelines below to get the job done.
Maybe a strong citrus type paint.
Fill a bucket with hot water and either add the cleaner to it or have it ready to go.
This research is strictly done for vinyl siding.
Rub the spot with a clean rag.
If the area still appears stained spray it again and wait a few minutes before scrubbing.
Wipe the area down again with a rag dipped into a bucket of clean water.
Start at the bottom of the stain and work your way to the top.
Stain on vinyl once it cures is very difficult to remove.
Put an orange oil based cleaner such as orange gojoo hand cleaner on the stain.