Prepare a bucket of car wash soap and hot water. If the surface seems discolored or dingy, add 1/2-cup of vinegar or another household acid to the mix.
Spray the Airstream trailer with a water hose to rinse off the dirt.
Dip a sponge into soapy water and wipe down the trailer. The long-handled brush will make it easier to reach the top of the trailer.
Rinse the trailer with the water hose to remove all the soap.
Use a clean towel to dry excess water from the exterior. Leaving the water to dry on its own may leave water stains.
Apply a coat of car wax to the trailer and buff away by hand, or with a soft cloth buffing tool. This step is essential to bringing out the original luster of the metal and protecting it from corrosion.
