Since egg stains on vinyl siding are extremely difficult to remove (not even high volume power-washing will take it off) you have nothing to lose by trying this before having to replace that section of vinyl siding:
Mix some non-abrasive filler such as sanding dust with an enzyme laundry detergent and spread a past of this over the affected surface. Cover it with plastic wrap to keep the past damp for as long as possible. Then rise off the surface. The theory behind this solution (told by a vinyl siding expert) is this solution is to have the enzymes stay active and in contact with the spots for a while so that the paste has a chance to soften them. It is much like soaking a cooking pan to remove baked-on food debris. It is also the approach recommended for removing dried on egg stains from the side of a home. You may also use the mr.clean magic earsers to clean dried egg off.
If this doesn't work, then take a piece of siding from another part of the house (that has aged) to match the piece you want to replace. This is less costly than replacing a larger area (color change would be brighter and stick out like a sore thumb) or, paint it. If you want to pain this part of the house then see your hardware store dealer and ask for advice on what paint to use.
Sometimes it is a simple as using a high quality white eraser.
Soften egg with dish detergent and wash as soon as possible with power washer. I asked the original question and tried the above. It worked.
with detergent and a brush or a sponge
Soap and water will remove egg from aluminum siding. If you use a high powered pressure washer to get the surface wet and then scrub with some soap it will rinse right off.
its a protein stain
Which soda or juice will make a darker stain on an egg
Wash them warm soapy water and a clean sponge or soft cloth. Spray them carefully with a hose and do not use too much pressure, which could damage them.
Laundry detergents usually contain enzymes to help remove protein based stains like food and blood. Try keeping the egg stain soaked in laundry detergent and water for several hours. Cover it with a wet towel to keep it wet. The enzymes should dissolve the egg.
pepsi/coke
To remove egg from paint work you have to act fast otherwise egg will attack the paint,get boiling water or very hot water and a thick cloth just clean the egg off as soon and quickly as you can,i know health and safety but come on guys use your common sense i know hot or boiling water just clean the paintwork as soon as
its the shape of a egg man man man lololololololololololol hehehehehehehehe egg man!!!!!!
After using a scrubbing pad with dish soap to remove the egg, you can try using table salt and lemon juice. Scrub with the lemon juice and allow the mix to sit for a few minutes. Alternatively, spray with diluted white vinegar. After a few minutes, thoroughly wipe off.