how often do you have to put the adams on? how long will it last?[email protected] said:For cleaning my undercarriage, I like to hose everything down first to remove all of the heavy mud and dirt. Then spray everything with a good All-Purpose Cleaner. For the dirtier areas I like to use a scrub brush or old wash mitt to clean the under-body thoroughly.
Once the undercarriage is dry, I then hit all of the exposed metal, plastic, and rubber areas with Adam's Invisible Undercarriage Spray. Not only does the Undercarriage Spray make my rig's underside look good, it also protects it from the elements the next time i drive it. That way almost any dirt or grime I run through will just fall right off the next I hit it with the hose or a pressure washer.