Thanks for all the great suggestions, but still have not found anything that will work 100 percent.
Tried magic eraser, soft scrub with bleach, vinegar and water, vinegar and water with dish soap, extreme vinyl cleaner, spray 9, fantastic, 409, star bright deck cleaner, etc.
Spray 9 worked the best, and removed about 60 percent with magic eraser, but still seeing a big dark spot.
Please keep the suggestions coming.