I use Protectant 303 on the seals and a dry silicone type spray on the mechanical parts. Wet sprays will attract and hold dirt and dust.
Bill and Debbie
2007.5 SILVERADO HD DA CREWCAB LTZ 4X4 ARE CAP
2003 Nash 25S TT
2012 Lance 855S
1996 Coleman Taos pop-up
1970 jeepster,v-6